In this question, a statement of assertion is followed by …

Physics System of Particles Rotational Motion Assertion & Reason MCQ (Single Correct)

In this question, a statement of assertion is followed by a statement of reason . Mark the correct choice as:

Assertion: A coin is placed on phonogram turn table. The motor is started, coin moves along the moving table.

Reason: The rotating table is providing necessary centripetal force to the coin with in a certain speed.

If both assertion and reason are true and reason is the correct explanation of assertion.

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

If assertion is true but reason is false.

If assertion is false but reason is true.

Text Solution

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The correct answer is:

: Within a certain speed of the turn table the frictional force between the coin and the turn

table supplies the necessary centripetal force required for circular motion On further increase of speed, the frictional force cannot supply the necessary centripetal force. Therefore the coin flies off tangentially.

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