Assertion :A particle is moving along x-axis. The resultant force $F$ acting on it at position $x$ is given by $F = - a x - b$ . Where $a$ and $b$ are both positive constants. The motion of this particle is not SHM Reason: In SHM, restoring force must be proportional to the displacement from mean position.

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Statement 1 is true because, for SHM, Force must be proportional to negative of displacement from the mean position. Also statement 2 correctly explains it so answer is A.

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Choose the correct option.

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