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A U - tube of uniform cross section cont...

A U - tube of uniform cross section contains mercury upto a height h in either limb. The mercury in one limbe is depressed a little and then relased. Obtain an expression for time period (T) of oscillation, assuming that T depends on h,`rho` and g, where `rho` is density of mercury.

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The correct Answer is:
`T = Ksqrt((h)/(g))`
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