Assertion :To cross the river in minimum time, man should swim in perpendicular to the direction of flow of river. Reason: In this case along the perpendicular direction to river flow, the component of velocity of man becomes maximum.

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
If the direction of river flow and direction of swimming is are perpendicular to each other, the component speed of the swimmer will be maximum and it would be $V sin 90^{\circ}$ .
So both assertion and reason are both correct.

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