Work, Energy and Power — JEE Main 2025 · 29 Jan, Evening shift · Q26

Question

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 v A = 5 m/s, v B = 2 m/s, v C = 4 m/s. If we wait sufficiently long for elastic collision to happen, then v A = 4 m/s, v B = 2 m/s, v C = 5 m/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:

Accepted Answer

(D) (A) is false but (R) is true

Answer

(A) (A) is true but (R) is false

Answer

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

Answer

(C) Both (A) and (R) are true and (R) is the correct explanation of (A)

Work, Energy and Power: JEE Main 2025 Physics question

More on Work, Energy and Power

Work, Energy and Power: JEE Main 2025 Physics question

More on Work, Energy and Power