When a large bubble rises from the bottom of a lake to the surface, its radius doubles. If atmos...

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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
[AIIMS 1995; AFMC 1997; Kerala PMT 2005]
(a) \( H \)
(b) \( 2 \mathrm{H} \)
(c) \( 7 \mathrm{H} \)
(d) \( 8 \mathrm{H} \)
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