A small hole is made at the bottom of a symmetrical jar as shown in figure. A liquid is filled into the jar upto a certain height. The rate of descension of liquid is independent of the level of the liquid in the jar. Then the surface of the jar is a surface of revolution of the curve –
Text Solution
Verified by ExpertsThe correct answer is:
A
Let y be the height of liquid at some instant.
Then 
= constant (given)
From equation of continuity,
( π x 2 ) 
= 
(a = area of hole)
Here, 
, a and g are constants
Hence, squaring the equation, we get y = kx 4 .
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