Tejas posted an Question
January 08, 2020 • 06:57 am 15 points
  • IIT JAM
  • Physics (PH)

USP-4, MCQ 23rd question

USP-4, MCQ 23rd question I didn't understand how "omega" got cancelled after taking ratio

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  • Sapna

    yes ,as in question angular momenta is equal not angular velocity

  • Rakesh

    i think aus is (A) because E =(1/2)Iw^2= L^2/2I and i1>i2 hence E1

  • Dr. manish kumar gupta best-answer

    comparing with linear motion (E=(1/2)mv^2), kinetic energy of rotational motion will be: E = (1/2) Iw^2 so, E is proportional to I (when 'w' is same) Since I1>I2 so, E1>E2. option B is correct.

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