Question

answer the following questions correct answer NEET exam questions. ..plzzzzzzzzz answer this

Answer 1

Since the ball attains equilibrium when the velocity becomes constant.

The effective force of the liquid must balance the viscous force

Effective force = V (d1 − d2) g

But v = M / d1

∴ effective viscous force = (M / d1) (d1 − d2) g

                                         = Mg (1 − d2/d1)

Hence b is the correct answer.

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