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JEE PHYSICS MCQ: OSCILLATIONS

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Two pendulums of time periods

3 \mathrm{~s}

and

7 \mathrm{~s}

respectively, start oscillating simultaneously from two opposite extreme positions. After how much time they will be in same phase?

View answer and explanation

Correct option: A

\frac{21}{8} \mathrm{~s}

Option A (

\frac{21}{8} \mathrm{~s}

) is correct because it is the time calculated for the two pendulums to be in the same phase.

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