NEET Physics Mechanical Properties of Fluids Questions Solved

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

(a) H                                  (b) 2H

(c) 7H                                (d) 8H

(c)

Where h = depth of lake

$⇒\mathrm{h\rho g}=7{\mathrm{P}}_{0}⇒\mathrm{h}=7×\frac{\mathrm{H\rho g}}{\mathrm{\rho g}}=7\mathrm{H}$

Difficulty Level:

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