Question
A simple pendulum with a brass bob has a time period T. The bob is now immersed in a nonviscous liquid and oscillated. If the density of the liquid is 1/8 that of brass, the time period of the same pendulum will be

T



easy
Solution
Due to buoyancy, the effective acceleration due to gravity decreases fromg to g’ = g – g/8 = 7g/8. Since The new time period will be
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