Questions
The metallic bob of a simple pendulum has the relative density . The time period of this pendulum is T. If the metallic bob is immersed in water, then the new time period is given by
detailed solution
Correct option is D
When the bob is immersed in water its effective weight = mg−mρg=mg ρ−1ρ ∴geff=g ρ−1ρT'T=ggeffT1⇒T'=Tρ(ρ−1)Talk to our academic expert!
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A simple pendulum has time period T1. The point of suspension is now moved upward according to equation where . If new time period is T2 then ratio will be
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