When a large bubble rises from the bottom of a lake to the surface. Its radius doubles. If atmospheric pressure is equal to that of column of water height H, then the depth of lake is

Question:

1.When a large bubble rises from the bottom of a lake to the surface. Its radius doubles. If atmospheric pressure is equal to that of column of water height H, then the depth of lake is

Options :

a) H
b) 2H
c) 7H
d) 8H

Answer :

c) 7H

Answer Steps :

Solution :-

Step1 :-

Step2 :-

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