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A pole is floating in a liquid with 80 c...

A pole is floating in a liquid with 80 cm of its length immersed. It is pushed doun a certain distance and then released. Time period of vertical oscillation is

A

`(4pi)/(7)`s

B

`(3pi)/(7)`s

C

`(2pi)/(7)s`

D

`(pi)/(7)s`

Text Solution

Verified by Experts

The correct Answer is:
A
`T=2pisqrt((l_("immersed"))/(g))`
`rArrT=2pisqrt((0.80)/(9.8))=(4pi)/(7)`
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