JEE Main 29 Jan 2025 Shift 2 Paper

Section: Physics

Question : 32 of 75

Marks: +1, -0

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) :
Three identical spheres of same mass undergo one dimensional motion as shown in figure with initial velocities vA=5m∕ s,vB=2m∕ s,vC=4m∕ s. If we wait sufficiently long for elastic collision to happen, then vA=4m∕ s,vB=2m∕ s,vC=5m∕ s will be the final velocities.

Reason (R) : In an elastic collision between identical masses, two objects exchange their velocities.
In the light of the above statements, choose the correct answer from the options given below.

[29 Jan 2025 Shift 2]

(A) is true but ( R ) is false
(A) is false but ( R ) is true
Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
Both (A) and (R) are true and (R) is the correct explanation of (A)

Validate

Go to Question:

Prev Question

Next Question