A long cylindrical glass vessel has a pinhole of diameter 
at its bottom. The depth to which the vessel can be lowered vertically in a deep water bath without the water entering into the vessel is (surface tension of water, 
, acceleration due to gravity, 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Given, diameter of a pinhole, 
So, radius of pinhole,
Pressure due to depth must be equal to excess pressure
where, 
depth
density of water
surface tension of water
and 
radius of a pinhole
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