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Friday, 9 October

NEET UG 2022 · Physics · Question 28

NEET 2022 Physics, question 28

Question 28 of the NEET 2022 paper (code R1) is a Physics question from Laws of Motion. Its idea, Momentum Conservation in Explosions, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.

Updated 2026-10-08

Q28 · Physics

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2 : 2 : 1. If the fragments having equal mass fly off along mutually perpendicular directions with speed v, the speed of the third (lighter) fragment is :

  1. 132 v3\sqrt{2}\,v
  2. 2v
  3. 32 v\sqrt{2}\,v
  4. 422 v2\sqrt{2}\,vOfficial answer

Official answer: option 4 · NTA final answer key

Same idea

The only question on Momentum Conservation in Explosions

No other NEET paper from 2017–2026 tested this exact idea.

Momentum Conservation in Explosions: every question and how it was framed

The chapter

Laws of Motion in ten years of NEET

20 questions from 2017–2026, asked in 10 of 10 papers, about 1.9 a paper. Newton's Laws of Motion alone had 10.

Laws of Motion: questions per paper

0362’172’185’191’201’211’222’233’242’251’26