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Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2009

  • question_answer
    Assertion  : All the rain drops hit the Surface of theearth with the same constant velocity. Reason (R) : An object falling through a viscous medium eventually attains a terminal velocity.

    A)  Both A and R are true and R is the correct explanation of A.

    B)  Both A and R are true and R is NOT a correct explanation of A.

    C)  A is true but R is false.

    D)  A is false but R is true.

    Correct Answer: A

    Solution :

    All the rain drops hit the surface of the earth with the same constant velocity because when a spherical body of radius r is dropped in a viscous fluid, it is first accelerated and then is acceleration becomes zero and it attains a constant velocity called terminal velocity.


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