Question 72Asked in CTET January 2024 Paper 2 Maths & Science, 21 Jan 2024

A body has a linear momentum of p and a mass of m. The kinetic energy of the body is :एक पिंड का रैखिक संवेग p तथा द्रव्यमान (संहति) m है। गतिज ऊर्जा क्या है?

एक पिंड का रैखिक संवेग p तथा द्रव्यमान (संहति) m है। गतिज ऊर्जा क्या है?
  1. Ap²mp²m
  2. B2p²m2p²m
  3. Cp²/2mp²/2m
  4. Dpmpm
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Correct answer: (C) p²/2mp²/2m

Explanation

KE = ½mv² and p = mv, so v = p/m and KE = ½m(p/m)² = p²/2m.गतिज ऊर्जा = ½mv² और p = mv, इसलिए v = p/m और KE = ½m(p/m)² = p²/2m।

From CTET January 2024 Paper 2 Maths & Science, 21 Jan 2024 — Previous Year Paper

This is question 72 of CTET January 2024 Paper 2 Maths & Science, 21 Jan 2024 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.