A spherical ball of radius 
and density 
falls freely under gravity through a distance h before entering a tank of water. If after entering the water, the velocity of the ball does not change, what is the value of h ? (Take, viscosity of water is 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Before entering the water, the velocity of ball is 
. If after entering the water, this velocity does not change, then this value should be equal to the terminal velocity. Therefore,
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