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Uniform speed of 2 cm diameter ball is 2...

Uniform speed of 2 cm diameter ball is `20cm//s` in a viscous liquid. Then, the speed of 1 cm diameter ball in the same liquid is

A

`5cms^(-1)`

B

`10cms^(-1)`

C

`40cms^(-1)`

D

`80cms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A

`v_(T)prop r^(2)` ltbr) Radius or diameter is half. So, uniform or terminal speed is `(1)/(4)`th.
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