Assertion :The coefficient of friction can be greater than unity. Reason: The force of friction is dependent on normal reaction and the ratio of force of friction and normal reaction cannot exceed unity.

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 and Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
A coefficient of friction that is more than 1 that means frictional is greater than normal force ( silicon rubber has coefficient of friction) greater than 1. So, coefficient of friction can be greater than 1.
$f = μ N$ where $f$ , frictional force
$N$ , Normal reaction
$μ$ , Coefficient of friction
$\frac{f}{N} = μ$ (ratio) & $μ$
$0 < μ \leq 1$
So Assertion is correct but reason is Incorrect.

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