Two bodies of same mass are projected with the same velocity

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Two bodies of same mass are projected with the same velocity at an angle 30° and 60° respectively. The ratio of their horizontal ranges will be

1. 1 : 1
2. 1 : 2
3. 1 : 3
4. 2 : √2

Correct Option: A

Horizontal range is same when angle of projection is θ or (90° – θ).