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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

Sir, I didn't understand the half-angle?

3 years ago by ARJUN PANDEY

The area is of curved surface or of the plane surface?? @ cone

6 years ago by Tanmay Goyal

Ans 1 ->

The area is of curved surface because we cut it out from sphere

6 years ago by vanshika deval

Wats the cos theta in the last relation

7 years ago by Shubhansh Giri

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