Eight equal drops of water are falling through air with a steady velocity of . If the drops combine to form a single drop big in size, then the terminal velocity of this big drop is
Text Solution
Verified by ExpertsThe correct answer is:
A
Let r be radius of each small water droplet and R be radius of a big drop formed.
Volume of big drop Volume of each small droplet
Let terminal velocity of small droplet be and of big drop be
.
Terminal velocity,
where the symbols have their usual meaning
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