JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 31 January 2024, Shift 1, Physics Q35

Question 35 of 90 in this shift, Physics question 5 of 30, Section A.

An artillery piece of mass

M_1

fires a shell of mass

M_2

horizontally. Instantaneously after the firing, the ratio of kinetic energy of the artillery and that of the shell is:

(1) $\frac{M_1}{M_2}$
(2) $\frac{M_2}{M_1}$ Official answer
(3) $M_1/(M_1+M_2)$
(4) $M_2/(M_1+M_2)$

Official answer

Option 2

NTA final key.

Chapter: System of Particles and Rotational Motion
Topic: Collisions
Idea tested: Momentum in Explosions

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.