Test Index

JEE Main Physics Class 11 Work, Energy and Power Part 2 Questions

© examsnet.com

Question : 100

Total: 100

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A Body P having mass M moving with speed u has head-on collision elastically with another body Q having mass m initially at rest. If m≪M , body Q will have a maximum speed equal to 2u after collision.
Reason R During elastic collision, the momentum and kinetic energy are both conserved.
In the light of the above statements, choose the most appropriate answer from the options given below.

[26 Feb 2021 Shift 1]

A is not correct but R is correct.
Both A and R are correct but R is not the correct explanation of A.
Both A and R are correct and R is the correct explanation of A.
A is correct but R is not correct.

Go to Question:

Prev Question