A long spring when stretched by `x cm`, has a potential energy `U`. On increasing the stretching to `nx cm,` the potential energy stored in spring will be

A long spring when strectched by 'x' cm has a potential energy 'v'. On increaseing the stretching to 'nx' cm the potential energy stored in the spring will be

A long spring is stretched by 2 cm, its potential energy is U. IF the spring is stretched by 10 cm, the potential energy stored in it will be

A long spring stretched by 2 cm and it's potential energy is U. If the spring is stretched by 10cm, the potential energy stored in it will be

When a long spring is stretched by 2cm, its potential energy is U. If the spring is stretched by 10cm, the potential energy stored in it will be

When a long spring is stretched by 2cm, its potential energy is U. If the spring is stretched by 10cm, the potential energy stored in it will be

A long spring when stretched by 2cm its potential energy is U. If the same spring is stretched by 8cm the potential energy of the spring is ----