A) less than T
B) greater than T
C) equal to T
D) infinite
Correct Answer: A
Solution :
Key Idea: Opposite charges attract each other. For SHM a restoring force acts on the bob this restoring force is accompanied by electrical force. Hence, restoring force changes from\[-\,mg\text{ }sin\text{ }\theta \]to\[\text{ }-\text{ }mg'\text{ }sin\text{ }\,\theta \] Where \[g'=g+\frac{{{F}_{e}}}{M}\] Also \[T=2\pi \sqrt{\frac{\text{displacment}}{\text{acceleration}}}\] Since, acceleration increase time period decreaseYou need to login to perform this action.
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