Question

When a small spherical ball is dropped in a viscous
liquid filled in a glass tube its terminal velocity depends
upon
(1) height of tube (2) radius of glass tube
(3) radius of ball
(4) none of these​

Answer 1

Answer:

The velocity of a sphere falling in a liquid increases at first. This continues to increases under opposing buoyant and viscous force. Viscous force is proportional to the velocity of the ball. As the speed increases with distance, opposing force tends to increase and the velocity finally tends to reach a terminal velocity at infinite time. Here it is best represented by curve C.

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Answer 2

Answer:

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