Assertion : For projection angle tan-1(4), the horizontal range and the maximum height of a projectile are equal.Reason : The maximum range of projectile is directly proportional to square of the velocity and inversely proportional to acceleration due to gravity.

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If both assertion and reason are true and reason is a true explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If both assertion and reason are false.

answer is B.

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Detailed Solution

We know R = 4H cotθIf R = H, the cotθ = (14) or tan θ = (4)and R = u2sin2θg R ∝ u2g

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