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Assertion: An...

Question

Assertion: An object falling through a viscous medium eventually attains terminal velocity
Reason: All the rain drops hit the surface of the earth with the same constant velocity

A

Both assertion and reason are true and reason is correct explanation of assertion.

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B

Both assertion and reason are true but reason is not the correct explanation of assertion.

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C

Assertion is true but reason is false.

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D

Both assertion and reason are false.

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Solution

The correct option is D Assertion is true but reason is false.
As an object moves through a viscous medium, the two opposing forces weight and viscous force balance each other and they attain a terminal velocity.
All rain drops won't hit the earth with same velocity as viscosity of atmosphere is not uniform and all rain drops are not of same mass.

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