A simple pendulum oscillating in air has period T. The bob of the pendulum is completely immersed in a non-viscous liquid. The density of the liquid is \(\left( {\frac{1}{{16}}} \right)\)th of the material of the bob. If the bob is inside liquid all the time, its period of oscillation in this liquid is:

A simple pendulum oscillating in air has period T. The bob of the pend

1.	A simple pendulum oscillating in air has period T. The bob of the pendulum is completely immersed in a non-viscous liquid. The density of the liquid is \(\left( {\frac{1}{{16}}} \right)\)th of the material of the bob. If the bob is inside liquid all the time, its period of oscillation in this liquid is:
A.	\(2T\sqrt {\frac{1}{{10}}} \)
B.	\(2T\sqrt {\frac{1}{{14}}} \)
C.	\(4T\sqrt {\frac{1}{{15}}} \)
D.	\(4T\sqrt {\frac{1}{{14}}} \)
Answer» D. \(4T\sqrt {\frac{1}{{14}}} \)

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