For the given values of initial velocity of projection and angle of inclination

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For the given values of initial velocity of projection and angle of inclination of the plane, the maximum range for a projectile projected upwards will be obtained, if the angle of projection is

Options:

A . α = π/4 - β/2

B . α = π/2 + β/2

C . α = β/2 - π/2

D . α = π/4 - β/2

Answer: Option B

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