Eight identical small drops of water are falling down vertically through a medium, each with terminal velocity ' V. If they combine to form a single drop, then its terminal velocity will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let radius of each drop 
Terminal velocity, 
Let ' R ' be the radius of big drop.
Volume of big drop 
volume of 8 small drops
Let 
be the terminal velocity of bigger drop,
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