Assertion :nm is not same as mN Reason: $1 n m = 10^{- 9}$ m and $1 m N = 10^{- 3}$ N

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 A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Nanometer (nm) is the unit of length and milinewton (mN) is the unit of force. So they can not same.
Also, $1 n m = 10^{- 9} m$ and $1 m N = 10^{- 3} N$
Thus, assertion and reason are correct and reason is the correct explanation for assertion.

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