The diameter of an air-bubble formed at the bottom of a pond is `d=4mum`, when the bubble rises to the surface, its diameter increases `n=1.1` times. If expansion of air bubble is assumed to be isothermal and atmospheric pressure to be standard. How deep the pond at the spot is [surface tension of water `0.075(N)/(m)`]A. 2.5 mB. 10 mC. 7.5 mD. 5 m

The diameter of an air-bubble formed at the bottom of a pond is `d=4mu

1.	The diameter of an air-bubble formed at the bottom of a pond is `d=4mum`, when the bubble rises to the surface, its diameter increases `n=1.1` times. If expansion of air bubble is assumed to be isothermal and atmospheric pressure to be standard. How deep the pond at the spot is [surface tension of water `0.075(N)/(m)`]A. 2.5 mB. 10 mC. 7.5 mD. 5 m
Answer» Correct Answer - D `hrhog=P_(0)(n^(3)-1)+(4T(n^(2)-1))/(d)`

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