Two objects are projected at angles `30^(@)` and `60^(@)` respectively with respect to the horizontal direction. The range of two objects are denoted as `R_(30^(@))` and `R_(60^(@))`. Choose the correct relation from the following.

If two bodies are projected at 30^(@) and 60^(@) respectively, with the same velocity, then

Two bodies of same mass are projected with the same velocity at an angle 30^(@) and 60^(@) respectively.The ration of their horizontal ranges will be

Two bodies of same mass are projected with the same velocity at an angle 30^(@) and 60^(@) respectively.The ration of their horizontal ranges will be

Two particle are projected with same initial velocities at an angle 30^(@) and 60^(@) with the horizontal .Then

Two particle are projected with same initial velocities at an angle 30^(@) and 60^(@) with the horizontal .Then

The V-t graphs of two objects make angle 30^(@) and 60^(@) with the time axis. Find the ratio of their accelerations.

Two objects A and B are horizontal at angles 45^(@) and 60^(@) respectively with the horizontal. It is found that both the objects attain same maximum height . If u_(A) and u_(B) are initial speeds of projection of objects A and B respectively , then u_(A)//u_(B) is

Let a vector r make angles 60^(@), 30^(@) with X and Y -axis, respectively. What are the direction cosines of r ?

In two circles two arc of same length makes an angle 30^@ and 60^@ respectively at the centre. The ratio of the radii of two circle is