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When an air bubble rises from bottom of lake to the surface it`s volume is doubled,find depth of lake.

When an air bubble rises from bottom of lake to the surface it`s volume is doubled,find depth of lake.

Grade:9

1 Answers

Umakant biswal
5359 Points
4 years ago
dear rishabh 
the pressure at the bottom of lake = the pressure due to hot air + the pressure due to water column =P1. 
the pressure at the top is only the atmospheric pressure = P2 , 
initial vol = V1 , 
final volume = V2 . 
and after that u havenot mentioned anything about the temp . so, i am considering it to be constant 
so, from gas eq 
P1V1 = P2V2 
V2=2V1 
REST  u need to put the value , your ques seems incomplete as u have not mention the value . 
hope u understand the concept 
regards 

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