Eight drops of water, each of radius 2 mm are falling through air | Filo
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Class 11

Physics

Mechanics

Mechanical Properties of Fluids

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Eight drops of water, each of radius 2 mm are falling through air at a terminal velocity of . If they coalesce to form a single drop, then the terminal velocity of combined drop will be:

Correct Answer: Option(a)
Solution:
Let the radius of bigger drop is R and smaller drop is r then

or                      ....(i)

Terminal velocity,
 

                (Using (i))

or
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