A simple pendilum is swinging in a vertical plane. The ratio of its potential energies when it is making angles 30^(@) and 60^(@) with thevertical is,

A simple pendilum is swinging in a vertical plane. The ratio of its po

1.	A simple pendilum is swinging in a vertical plane. The ratio of its potential energies when it is making angles 30^(@) and 60^(@) with thevertical is,
Answer» `1 : (2 - sqrt(3))` `(2 - sqrt(3)) : 1` `1 : 2` `2 : 1` ANSWER :B