Assertion :Static friction is a self adjusting force. Reason: Coefficient of friction does not depend upon mass of the body.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
We know static friction is equal to applied force till body remains in static position. It adjust it's value according to applied force so, we can say static friction force is self adjustable.
Coefficient of friction is a property of surfaces in contact, it's independent of mass.
So both statements are correct and reason is not explanation of static force being self adjustable.
B is correct answer.

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(c) Assertion is correct, but reason is incorrect
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Choose the correct option.

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