Assertion(A): When normal reaction is halved the coefficient of static friction is unchanged
Reason(R): Limiting friction is directly proportional to normal reaction

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

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Both A and R are true and R is not correct explanation of A

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A is correct and R is incorrect

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A is incorrect and R is correct

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Solution

The correct option is B Both A and R are true and R is not correct explanation of A

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Assertion(A): When normal reaction is halved the coefficient of static friction is unchangedReason(R): Limiting friction is directly proportional to normal reaction

The correct option is B Both A and R are true and R is not correct explanation of A

Assertion(A): When normal reaction is halved the coefficient of static friction is unchanged
Reason(R): Limiting friction is directly proportional to normal reaction