If a small sphere is let fall vertically in a large quantity of still liquid of density smaller than that of the material of the sphere

Options

(a) At first its velocity increases, but soon approaches a constant value
(b) It falls with a constant velocity all along from the very biginning
(c) At first it falls with a constant velocity which after some time goes on decreasing
(d) Nothing can be said about its motion

Correct Answer:

At first its velocity increases, but soon approaches a constant value

Explanation:

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