PE VariationHardQuestion 31132
Question
Frequency of variation of PE with time in SHM of frequency f is:
- Af/2
- Bf
- C2fCorrect
- D4f
Correct answer
2f
Explanation
PE ∝ sin²(ωt) = (1 − cos2ωt)/2. Frequency of PE variation is 2f (twice the SHM frequency).