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Two pendulums begin to swing simultaneou...

Two pendulums begin to swing simultaneously. If the ratio of the frequency of oscillations of the two is 7 : 8, then the ratio of lengths of the two pendulums will be

A

`7:8`

B

`8:7`

C

`49:64`

D

`64:49`

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Verified by Experts

The correct Answer is:
D
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