JEE Advanced 2022 Paper 1 Q8

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A projectile is fired from horizontal ground with speed v and projection angle theta. When the acceleration due to gravity is g, the range of the projectile is d. If at the highest point in its trajectory, the projectile enters a different region where the effective acceleration due to gravity is g' = g/0.81, then the new range is d ' = nd. The value of n is ___.


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