Question

The frequency of a particle executing simple harmonic motion is 10 hertz. The frequency of variation of its kinetic energy is

• A. 20 Hz
• B. 10 Hz
• C. 5 Hz
• D. Zero

Answer 1

Answer: (A)

20 Hz

Answer 2

frequency of variation of kinetic energy is $2 f$. for $f$ being frequency of S.H.M $\therefore f '=2(10)=20 \,Hz$