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High School/JEE/NEET/IPhO Physics | 17-19 Yrs

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  1.  
    2. how this graph is valid for l= -k bcz for l= -k the graph is not possible bcz it is coming in the form of imaginary no.
    8 months ago by John Arms

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  2.  
    3. Sir please provide solutions of practice questions also plz
    1 years ago by Devansh Mishra

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  3.  
    4. sir can you please explain the angle part where to take general solution
    2 years ago by

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  4.  
    5. plz make this video public sir unable to watch it .
    2 years ago by Soul Status Lover

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  5.  
    6. where are special concepts of physics videos
    2 years ago by SAMYAK JAIN

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  6.  
    7. Sir playback speed of 1.5x for video lectures available or not ?
    2 years ago by Pranav Mehta

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  7.  
    8. why why you took y to be 0.6 because y should be from center to final projection of particle but 0.6 is displacement of particle initial position of particle to final position not projection
    3 years ago by Vipul kumar gupta

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  8.  
    9. sir hindi me nye videos kyu nhi dalte ?
    3 years ago by

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  9.  
    10. Sir I did not understand how did you write A and B as Rcos(phi) and Rsin(phi)?
    3 years ago by M.V.S.S KARTHIK

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  10.  
    11. Sir I did not understand how did you write the values of A and B as Rcos(phi) and Rsin(phi)?
    3 years ago by M.V.S.S KARTHIK

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  11.  
    12. sir please post videos on damping and forced oscillations
    3 years ago by PRITY CHOUDHARY

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  12.  
    13. what should be the restoring force if we did not considered reduced mass
    4 years ago by Aryan Dwivedi

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  13.  
    14. Where can I get solution for question sets
    4 years ago by
    Ans 1 ->
    I think you should search them on Google
    3 years ago by Pulkit Garg

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  14.  
    15. I am unable to solve Qset after former video lectures. What should I do?
    4 years ago by

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  15.  
    16. Thanku for such nice video i hav a querry...in above question is it not shm for any value of x whether small or big?
    4 years ago by

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  16.  
    17. sir does +A and -A denote the coordinates of extreme positions?
    4 years ago by Atharav Karhad

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  17.  
    18. why applying force at mean position would be advisable ? pls explain sir
    4 years ago by Yash Veer Nagar

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  18.  
    19. sir i am alreadily in a coaching institute. I am very much confused like to refer to which book for my JEE Preparation Can u pls advise me sir
    4 years ago by Kartik Parameshwaran

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  19.  
    20. Sir the relation mg=kh/2 is valid only if the block is in equilibrium. Then how come we can use it in the situation when block is not in equilibrium?
    4 years ago by Swapnil Aggarwal

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  20.  
    21. sir i am getting confused between omega and theta dash
    4 years ago by Swapnil Aggarwal

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  21.  
    22. sir kindlymake previous year jee advance paper solution also
    4 years ago by Aum Prakash

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  22.  
    23. sir how to watch at ×2 speed on the app
    4 years ago by Shikhar Srivastava

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  23.  
    24. Sir in which video Can I find phase and phase constants and their graphs
    5 years ago by Adityavardhan Tiwari

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  24.  
    25. Where you have discussed combination of two SHM..You have said about concept video..where I will get concept video?
    5 years ago by Debika

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  25.  
    26. sir where to get the solution of quset
    5 years ago by ABHISHEK MISHRA

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  26.  
    27. thanks for your efforts.this is the true nationalism.
    5 years ago by ABHISHEK MISHRA

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  27.  
    28. Sir, I am not able to find any video named 'Special concepts of physics' about which you addressed in this video. Please provide the link.
    5 years ago by Jatin Saini

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  28.  
    29. hello sir, i can't understand why at extreme position kinetic energy is minimum?
    5 years ago by shreyaa chaudhuri
    Ans 1 ->
    at the extreme position the velocity of particle becomes 0 as mgcos is always acting to decrease the the speed.at the the extreme position the speed becomes and hence KE becomes 0 as it is 1/2 mv2.now mgcos will act to increase the speed of the particle till its mean position and again from mean positiion it will decrease speed till its speed becomes 0 at the exteme position thereby making the kinetic energy 0
    5 years ago by shorya sharma

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  29.  
    30. Where can I get solution for question sets
    5 years ago by Amitesh Kumar

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  30.  
    31. Sir, why the angle is omega t (at 2:25 )????
    5 years ago by Rishikant Soni
    Ans 1 ->
    distance travelled is omega t
    4 years ago by Saikrishna
    Ans 2 ->
    distance travelled is omega t
    4 years ago by Saikrishna
    Ans 3 ->
    i guess
    4 years ago by Saikrishna

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  31.  
    32. Sir, why the angle is omega t (at 2:25 )????
    5 years ago by Rishikant Soni

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  32.  
    33. Sir, Where can I get the solutions to the QuSets? Regards!
    5 years ago by Arati Kumari

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  33.  
    34. sir in the introductory class there is typing of words of at the bottom.Please provide that facility for all videos so we could concentrate by reading them.
    5 years ago by ravin teja

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  34.  
    35. I can not understand why angular displacement become Omega T
    6 years ago by Saurabh Modanwal

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  35.  
    36. sir potential energy ko negitive kyo nahi liya
    6 years ago by akshat saxena

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  36.  
    37. Sir I didn't get the last condition for particle to be sham
    6 years ago by Samai S

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  37.  
    38. why dislpacement is taken negative?
    6 years ago by Ratnakar Mishra

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  38.  
    39. Please also teach in hindi
    6 years ago by Sovan Kumar Panigrahy

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  39.  
    40. i understood it is the given value only
    6 years ago by Shantanu Kapoor

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  40.  
    41. Sir plz provide link for concept of reduced mass. Icant find . Thanks in advance
    6 years ago by

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  41.  
    42. sir, is it correct to judge the amplitude directly since max value of y=Asin(x) Bcos(x) will be root of (A^2 B^2)?
    6 years ago by Ashwin Murali
    Ans 1 ->
    sorry,root of (A^2 B^2)
    6 years ago by Ashwin Murali

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  42.  
    43. Sir can u plz provide the solution of que-sets
    6 years ago by Rakesh singh

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  43.  
    44. What is the time period of a block of mass "M" attached to a spring of mass "m" and spring constant k ? Remember the spring has some mass m
    6 years ago by nukil sharma

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  44.  
    45. Good
    6 years ago by Vignes Uthayakumar

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  45.  
    46. why B is moving anti-clockwise on circle it should move clockwise as initially at extreme?
    6 years ago by Pranav Dabhade
    Ans 1 ->
    yes I have the same doubt.
    4 years ago by Keshav Carpenter

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  46.  
    47. It was said that time period of shm doesnt change if a constant external force is acting on the body undergoing shm. But if a pendulum is placed in an elevator its time period change. Why?????
    6 years ago by Kaanapuli RamKumar
    Ans 1 ->
    This is valid only for a spring and block system. You can verify this by solving eqns for simple systems of spring and block and string and block in horizontal and vertical conditions.
    6 years ago by Sushmitha Subramanian

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  47.  
    48. How we can write Torque= -C (Theta) ,How torque is related to Coefficient of stiffness?is any proof for it?
    6 years ago by Pranav Dabhade
    Ans 1 ->
    C is constant and this constant is called coeficient of stiffness. Like you call (eta) as viscosity and (rho) as resistivity
    6 years ago by Rupesh Koirala

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  48.  
    49. Sir may be the restoring force written here is wrong As there will be a restoring force due to spring 2 also and that is K2
    6 years ago by ArjunDev Singh

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  49.  
    50. How we can conclude that mean position is at x=4 cm ?
    6 years ago by Pranav Dabhade

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  50.  
    51. sir please update the complete solution for every question set
    6 years ago by Dharamjeet Singh

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  51.  
    52. why we have taken initial phase as 90 degree in case 1st?
    7 years ago by Nikhil Pareek

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  52.  
    53. in which video fundamental have u explained taylors method
    7 years ago by Amit tiwari

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  53.  
    54. What is resonant angular frequency??
    7 years ago by Aishwarya Roogi

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  54.  
    55. A particle undergoes shm with time period T. Time taken for 3/8th oscillation is? Why we should split 3/8 as 1/4 and 1/8 of oscillation and then find? Why can't we just multiply 3/8*T?
    7 years ago by narayanappa.b narayan

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  55.  
    56. Sir what if we had a phase angle associated with the equation then too wud the amplitude be 0.5?
    7 years ago by Sudarshana Ghosh

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  56.  
    57. Sir why is y=Asinwt and not just sinwt?
    7 years ago by Angira Ghosh
    Ans 1 ->
    Because it is a general equation. If it was sin(wt) then the amplitude is always 1 which is not correct. A is a placeholder constant to show that the amplitude (max displacement) can be any constant.
    7 years ago by Shreyas Bharadwaj

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  57.  
    58. Sir can you please tell me how the accelaration of the particle became -w2y from a=Rw2sinwt?
    7 years ago by Angira Ghosh
    Ans 1 ->
    compare it with Y= Rsinwt
    7 years ago by vikas azad

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  58.  
    59. Sir can you please tell me how the accelaration of the particle became -w2y from a=Rw2sinwt?
    7 years ago by Angira Ghosh

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  59.  
    60. Sir why is the displacement of pulley x/2?
    7 years ago by Kaushik

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  60.  
    61. The Video of Superimposition of 2 or more SHM is missing. It is in the syllabus of JEE.
    7 years ago by Prateek Jain

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  61.  
    62. sir why does time period of pendulum in water changes in that also constant force is acting.
    7 years ago by nilansh rajput
    Ans 1 ->
    Pendulum undergoes Angular SHM. Thats why.
    7 years ago by Shantanu Kapoor

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  62.  
    63. what is meant by damping and resonance what is the use of learning waves
    7 years ago by hemanthsai
    Ans 1 ->
    learning waves is useful in understanding of many topics like sound, AC, EM Waves and SHM... damping and resonance are the terms used in oscillations by external sources...
    7 years ago by Physics Galaxy

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  63.  
    64. Sir i recently bought physics galaxy book.I am stuck up with this sum(5-97) under numerical objectives on shm in ur book . Please reply the solution as soon as possible Please sir.
    7 years ago by sachin

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  64.  
    65. Sir when will electricity&magnetism book be released in physicsgalaxy?
    7 years ago by sachin
    Ans 1 ->
    By end of december 2017...
    7 years ago by Physics Galaxy

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  65.  
    66. Sir i recently bought physics galaxy book.I am stuck up with this sum(5-97) under numerical objectives on shm in ur book . Please reply the solution as soon as possible Please sir.
    7 years ago by sachin
    Ans 1 ->
    Why you are posting this query below the video which is not linked to it... for different queries there is INTERACT tab where you can post your queries in specific topics... here this will distract other viewers of video lectures...
    7 years ago by Physics Galaxy

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  66.  
    67. sir how can we know which of the sine cosine equations are S.H.M.
    7 years ago by Tanveer Jaskaran
    Ans 1 ->
    If at t=0 particle is starting from mean position then we use sine and if it is starting from ext position then we use cosine.. this I have explained in basic videos of SHM equation...
    7 years ago by Physics Galaxy
    Ans 2 ->
    SHM equations have argument linear function of time...
    7 years ago by Physics Galaxy

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  67.  
    68. Sir i cannot find the special concept of reduced mass lecture..so sir please give me the link for the same
    7 years ago by Shubhit Talus
    Ans 1 ->
    It is there in booster classes of dynamics... If you missed these then watch all dynamics booster classses again... link is not there on PG site, you need to search these in google, you will get it...
    7 years ago by Physics Galaxy
    Ans 2 ->
    Sir i could find it nowhere on Google....and i wasn't preparing for JEE when you had live streamed the lectures.....so how can i access it now..???? please help me sir.......and thanks a lot for ur videos....
    3 years ago by Saswat Mishra

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  68.  
    69. sir where is the special concept of reduced mass lecture
    7 years ago by ariya
    Ans 1 ->
    It is in booster classes of dynamics as well as in SHM... go to the schedule page of PG Livestream and wait for the restream schedule of booster classes... these will start from June third week...
    7 years ago by Physics Galaxy

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  69.  
    70. sir can we substitute any other constants for A and B?
    8 years ago by saikiran

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  70.  
    71. A solid sphere of radius R is floating in a liquid of density p(phro) with half of its volume submerged. If the sphere is slightly pushed and released it starts performing simple harmonic motion. Find the frequency of these oscillations.
    8 years ago by Shivam Bansal
    Ans 1 ->
    is the answer 1/(2pi)[sqrt(3g/2R)]
    7 years ago by Sparsh.G.Sarode

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  71.  
    72. a block of mass m collides perfectly inelastically with another identical block connected to a spring of force constant k the amplitude of resulting SHM will be
    8 years ago by ashok Theja

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  72.  
    73. Sir can you please make a video on Damped Oscillations also ?
    8 years ago by Kaustav Ghosh

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  73.  
    74. sir why is cos^2(wt+alpha)=1/2 ?
    8 years ago by Piyush Girdhar
    Ans 1 ->
    average value of square of sine or cosine function is 1/2...
    8 years ago by Physics Galaxy

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  74.  
    75. A particle moves with simple harmonic motion about the point x=0. At time t=0 it is at extreme position(x=A). Time period of oscillation is T. Find the average acceleration of the particle for the interval t=T/4 to t= 3T/4
    8 years ago by Sumathi Govindarajan

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  75.  
    76. how to caculate average acceleration in simple harmonic motion over one complete cycle
    8 years ago by pathan hafizkhan yakubkhan

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  76.  
    77. from where we can get the solutions of qset
    8 years ago by naman khetan
    Ans 1 ->
    quesets solutions are not released as of now... when we will release we will inform all our users...
    7 years ago by Physics Galaxy

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  77.  
    78. But at 3.00 he wrote total energy as ½mw²a but it is ½mw²a²
    8 years ago by Niranjan
    Ans 1 ->
    That was a mistake!
    8 years ago by Ashwin

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  78.  
    79. Sir is it necessary that all four points will be on the the body? Like if k^2/lc lies outside the body or the com of body is near to the end due to which lc also lies outside the body on one side
    8 years ago by Mohak Sharma
    Ans 1 ->
    dude what do you mean ???????????????????????????????????????????
    8 years ago by Nirav Bhandari

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  79.  
    80. Sir can we solve this by using traditional method if yes kindly guide how to do it. Regards
    8 years ago by राकेश कुमार मिश्रा

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  80.  
    81. Sir can we solve this problem by traditional method .? If yes then kindly guide how it can be done. Regards
    8 years ago by राकेश कुमार मिश्रा
    Ans 1 ->
    definitely
    8 years ago by Nishit Goyal

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  81.  
    82. Sir but at eqm position potential energy is zero so xm = a/b
    9 years ago by Sushabh Deshmukh
    Ans 1 ->
    At stable equilibrium position potential energy is not zero but it is minimum and therefore its derivative with respect to x is zero
    8 years ago by Nikhil Bansal
    Ans 2 ->
    At stable equilibrium position potential energy is not zero but it is minimum and therefore its derivative with respect to x is zero
    8 years ago by Nikhil Bansal

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  82.  
    83. Sir can't we do it with taylor's method ????
    9 years ago by Sushabh Deshmukh

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  83.  
    84. Sir what if there was a spring in place of a string ?
    9 years ago by Sushabh Deshmukh

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  84.  
    85. Sir can we do this problem by calculating net torque = I.alpha ???
    9 years ago by Sushabh Deshmukh

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  85.  
    86. SIr how a1/w1 = a2/w2 = a1+a2 / w1+w2 ??????
    9 years ago by Sushabh Deshmukh
    Ans 1 ->
    a1/w1=a2/w2------gives-----a1/a2=w1/w2------add 1 to both sides and take LCM-----(a1+a2)/a2=(w1+w2)/w2-----gives--------a2/w2=(a1+a2)/(w1+w2)
    9 years ago by Mohak Sharma
    Ans 2 ->
    absolutely right
    8 years ago by harshavardhan reddy
    Ans 3 ->
    it's simply relative motion
    7 years ago by Raghu Vamshi

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  86.  
    87. sir in the previous question of cylinder you consider when the cylinder moves it aquired kinetic energy(1/2mv^2) here rod is also moving so why it does not acquired kinetic energy
    9 years ago by aashu gupta
    Ans 1 ->
    As here rod is in rotational motion about the hinged point we use kinetic energy (1/2 I omeaga^2) which is considered in this video... pl watch it again...
    9 years ago by Physics Galaxy
    Ans 2 ->
    Hello Ashu in previous case the cylinder was having both linear and rotational motion and here it is purely rotational motion that is why you are finding this difference. Thanks
    8 years ago by राकेश कुमार मिश्रा

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  87.  
    88. Find the timeperiod of liquid placed in U tbe of different crosssections A&B
    9 years ago by rambabuancha
    Ans 1 ->
    Pl click on this link to see solution of your problem http://physicsgalaxy.com/lectures/1/19/460/Solved%20Example-9#23
    9 years ago by Physics Galaxy

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  88.  
    89. The magnitude of average acceleration in half time period in a simple harmonic motion if particle starts from mean position is...........ans in terms of A pi and omega.
    9 years ago by Mohak Sharma
    Ans 1 ->
    You can calculate avg acceleration by DELTA v / DELTA t then take the magnitude of it....
    9 years ago by Physics Galaxy

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  89.  
    90. Sir can you please give me the link of the lecture in which concept of reduced mass is explained
    9 years ago by Mohak Sharma
    Ans 1 ->
    You need to search it on google as these are not made available on PG site...
    7 years ago by Physics Galaxy

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  90.  
    91. Sir, I didn't understand why alpha is 90 in case 1 and Pi - alpha in case 2.
    9 years ago by Duvvuri Venkat Nihal
    Ans 1 ->
    the bob has a tendency to move up the initial position at t=0 i.e. when it is making an angle pi and in that case angle pi is more than pi/2 so for sin inverse of value more than 1 the inverse function becomes pi-
    8 years ago by Charan Sai

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  91.  
    92. Sir on the circle why we did not map A and B particles moving towards each other
    9 years ago by Mohak Sharma
    Ans 1 ->
    Pl see the diagram carefully we are taking A and B initially on the opposite sides of circle as they start their oscillations from extreme position so they will be moving toward each other only...however after some time when the strings become paralle they will cross each other in opposite direction...
    9 years ago by Physics Galaxy
    Ans 2 ->
    Sir how a1/w1 = a2/w2 = a1+a2 / w1+w2 ?????
    9 years ago by Sushabh Deshmukh

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  92.  
    93. Sir but why have you exactly substituded A and B as function of theta
    9 years ago by Mohak Sharma
    Ans 1 ->
    Here R and phi/theta are both constants and A and B are also constants so I have just defined a relation among constants with which we are able to transform the given equation in the known form of equation of SHM... thats it...
    9 years ago by Physics Galaxy

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  93.  
    94. Sir please clear my 2 doubts 1) why have you applied conservation of momentum as it can be applied only in absence of external force . Here spring force is an external force for the pan 2) after we get the velocity of the pan can we use energy conservation and write (1/2)(3m)v^2= (1/2)kx^2-(3m)gx, where x is further compression of spring after mass m hits the pan
    9 years ago by Mohak Sharma
    Ans 1 ->
    (1) At the time of collision the pan is in balanced state so net force on it is zero and collision is considered as almost instantaneous process so we can use conservation of momentum...Also when impulsive forces are present we can neglect gravity and other finite forces of system in such cases....(2) Yes we can conserve energy after collision...as work energy theorem is another way to use energy conservation only...
    9 years ago by Physics Galaxy

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  94.  
    95. Sir, How can I get all six volumes of Physics Galaxy Books
    9 years ago by K. Narayanan
    Ans 1 ->
    You can get these books by contacting the publisher - GK publications Noida..
    9 years ago by Physics Galaxy

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  95.  
    96. Sir, KE and PE for SHM is obtained with respect to time and displacement. Sir what will be KE and PE for a propagating simple harmonic waves.
    9 years ago by K. Narayanan
    Ans 1 ->
    For this you can refer to the advance illustration in the topic of waves...
    9 years ago by Physics Galaxy

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  96.  
    97. Sir i cudnt find some of the topics in SHM, like super position of SHM ,infinite length of simple pendulum.although u have mentioned in an advance illustration u have covered the superposition in the theory section?? with all due respect sir may u help me to find it.. that would be ur most kindness.. thank u reply ASAP
    9 years ago by Mir Momin
    Ans 1 ->
    Superposition of SHM is same as superposition of waves... When two waves superpose on a medium particle, actually it is the superposition of two SHMs at that point...
    9 years ago by Physics Galaxy

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  97.  
    98. in this lecture did kinetic energy minimum represents that that kinetic energy is zero as velocity becomes zero at extreme position.
    9 years ago by sanjiv kumar tiwari
    Ans 1 ->
    yes,because if its minimum speed is not 0 then it would not be able to turn back to its means position.
    9 years ago by Kishan Patel

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  98.  
    99. sir i have covered all the pg video lectures on rigid body dynamics but couldnot find instantaneous axis of rotation (which you told me to go through in previous answer). sir pls guide me where can i find it?
    9 years ago by vishal

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  99.  
    100. sir if the rod is oscillating in horizontally normal to plane, how can g have a component gcos(theta) in this direction as g acts downward so gcos(90) must be zero. sir pls reply i m stuck here
    9 years ago by vishal
    Ans 1 ->
    In this problem if you watch the video carefully you can see that restoring acceleration is not due to horizontal component of g... it is due to the component of the component of g which is acting along the instantaneous axis of rotation of Rod and bob...To understand Instantaneous Axis of Rotation... pl go through the topic of rotational motion...
    9 years ago by Physics Galaxy

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  100.  
    101. sir can u pl s explain how at 3;16 you have written the equation sir can u pls explain how at 3;16 you have written K'=Kl/l'
    9 years ago by vishal
    Ans 1 ->
    To understand force constant of spring we use partition formula given at the link http://en.wikipedia.org/wiki/Series_and_parallel_springs .You can use this link or follow the detailed analysis in the book Physics Galaxy Vol 1 page no 187 to 190...
    9 years ago by Physics Galaxy

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  101.  
    102. sir where can i find the special concepts here please sir
    9 years ago by raj
    Ans 1 ->
    section of special concepts will be available after launch of newer version of PG...going to be live soon...
    9 years ago by Physics Galaxy

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  102.  
    103. sir can u pls explain how at 3;16 you have written k1=kl/i1
    9 years ago by vishal

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  103.  
    104. what will be the spring constant of a spring if it is derived from two identical springs ie. 2 springs going into 1
    9 years ago by Himanshu Rasal
    Ans 1 ->
    When springs are connected in series or in parallel you can find the spring constant by the equivalent method... For springs in parallel use K(eq) = K1 + K2 and for series combination use K(eq) = (K1K2)/(K1+K2)..
    9 years ago by Physics Galaxy

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  104.  
    105. what will be the spring constant of a spring if it is derived from two identical springs ie. 2 springs going into 1
    9 years ago by Himanshu Rasal

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  105.  
    106. sir , how to find time period of a pendulum of string length comparable to the earth
    9 years ago by Vishal
    Ans 1 ->
    This can be measured by the conventional method... consider a pendulum... displace it by angle theta... consider restoring force on it due to component of g but be careful, here direction of g you need to consider directed toward earth centre... then compare with a prop to -x and get omega...
    9 years ago by Physics Galaxy

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  106.  
    107. Is accleration in S.H.M always directed towards mean position?
    9 years ago by
    Ans 1 ->
    Yes.
    9 years ago by Physics Galaxy

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  107.  
    108. how to find the energy of a spring of force constant K, when it is connected in a complex pulley system?
    9 years ago by nithin
    Ans 1 ->
    Spring energy at any instant is always (0.5) Kx^2 where x is extension in spring...
    9 years ago by Physics Galaxy

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  108.  
    109. how to find phase difference between 2 shm's using phaser diagram?
    10 years ago by Tanuj Sharma
    Ans 1 ->
    Please refer to advance illustrations of SHM...
    9 years ago by Physics Galaxy

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  109.  
    110. while writing the equation for frequency :-1/2p root over g/a where did 1/2p came from????
    10 years ago by sanjiv kumar tiwari
    Ans 1 ->
    always frequency is (1/2pi) times omega... as omega is measured in rad/sec and frequency in Hz or cyc/sec...
    9 years ago by Physics Galaxy

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  110.  
    111. How to find the time period of SHM of a particle dropped in a tunnel through earth (along a chord and not along the diameter of the earth).
    10 years ago by Mishra Manoj
    Ans 1 ->
    See advanced Illustrations of SHM.. it is explained there...
    9 years ago by Physics Galaxy

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  111.  
    112. Are there any videos on damped oscillations?
    10 years ago by Neha Nayak
    Ans 1 ->
    Will be uploaded soon...
    9 years ago by Physics Galaxy

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  112.  
    113. how can you say that both A and B are function of theta
    10 years ago by manish reddy yedulla
    Ans 1 ->
    please reply
    10 years ago by manish
    Ans 2 ->
    A and B are constants and any two constants can always be expressed in terms of two other constants... which we have done here to reduce the given function in the form of SHM...
    9 years ago by Physics Galaxy
    Ans 3 ->
    Test Content
    7 years ago by Anushree Wasule

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