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NEET UG PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES
1
Medium
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Analyzing
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Assertion(A): If a bob of a simple pendulum is kept in a horizontal electric field, its period of oscillation will remain same.
Reason(R): If bob is charged and kept in horizontal electric field, then the time period will be decreased.
Reason(R): If bob is charged and kept in horizontal electric field, then the time period will be decreased.
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Correct option: B
If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion. The period remains the same if only gravity acts, but if the bob is charged, the effective 'g' changes, thus changing the period.
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