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

Basic Tools

Mechanics

Heat & Thermodynamics

Oscillation & Waves

Properties of Matter

Gravitation

Electrostatics

Magnetic Effects

Optics

Modern Physics

Semiconductors

Communication Systems

p.s. can you tell me how did you write the volume.I didn't understand it.

10 years ago by himanshu chhabra

Ans 1 ->

volume is mass divided by density

10 years ago by Dhanush K

Ans 2 ->

because density=mass/volume.... and density of total substance=cavity+copper piece

10 years ago by yash

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