A body of mass 10gm and having charge 2C is attached to a spring which is suspended from ceiling .If it is vibrating then it's time period is 1 sec. If an electric field of intensity 100N/C is applied in the downward direction then the time period becomes
1. 1/2sec
2. 4sec
3. 3sec
4. 1sec
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Answer:
1 second
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