The matallic bob of a simple pendulum has the relative density `rho`. The time period of this pendulum is `T` it the metallic bob is immersed in water the new time period is given by

Options

A. `T(p-1)/(p)`
B. `T(p)/(p-1)`
C. `Tsqrt((p-1)/(p)`
D. `Tsqrt((p)/(p-1)`

Explanation

When the bob is immersed in water its effective
weight `=(mg-(m)/(p)g)=mg((p-1)/(p))`
`:.g_(eff)=g((p-1)/(p)),(T')/(T)=sqrt((g)/(g_(eff))`
`rArrT'=Tsqrt((p)/(p-1))`