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

Basic Tools

Mechanics

Heat & Thermodynamics

Oscillation & Waves

Properties of Matter

Gravitation

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Magnetic Effects

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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

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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