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Two simple pendulums of length 100m and ...

Two simple pendulums of length `100m` and `121m` start swinging together. They will swing together again after

A

the longer pendulum makes 10 oscillations

B

the shorter pendulum makes 10 oscillations

C

the longer pendulum makes 11 oscillations

D

the shorter pendulum makes 20 oscillations

Text Solution

Verified by Experts

The correct Answer is:
A
`(T_(1))/(T_(2)) = sqrt((l_(1))/(l_(2))) = sqrt((100)/(121)) = (10)/(11)`
`T_(1) = 10 T, T_(2) = 11 T`
`t = "LCM of T"_(1) and T_(2) = 110` T
oscillator shorter pendulum and 10 oscallator longer one
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NARAYNA-OSCILLATIONS-EXERCISE - I (H.W)
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