Assuming potential energy 'U' at ground level to be zero.

All objects are made up of same material :-
`{:(U_(P) = "Potential energy of solid sphere",U_(Q) = "Potential energy of solid cube",),(U_(R ) = "Potential energy of solid cone",U_(S) = "Potential energy of solid cylinder",):}`

Options

A. `U_(S) gt U_(P)`
B. `U_(Q) gt U_(S)`
C. `U_(P) gt U_(Q)`
D. `U_(P) gt U_(S)`

Answer

A, B

Explanation

In `P, Q` and `S`, the centre of masses lie at `D//2` height from the base level. Where as in `R`(cons) the com lieas at `D//4` height from the base.
Hence `U_(P) gt U_(Q)`.