Assertion: A coin is placed on the phonogram turntable. When the motor starts, the coin moves along the turntable. As the speed goes on increasing the coin flies off after some time.
Reason: The gravitational force of turntable provides the necessary centripetal force to the coin.

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If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

If both Assertion and Reason are true and the Reason is not a correct explanation of the Assertion

If Assertion is true but Reason is false

If both Assertion and Reason are false.

answer is C.

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Detailed Solution

As the angular speed of the turn table increases the centrifugal force on the coin increases once it becomes more then the maximum frictional force it flies off.

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