A long spring is stretched by x cm its P.E. is U. If the same spring is stretched by Nx cm the P.E. stored in it will become

A long elastic spring is stretched by 2 cm and its P.E. is 20 J. If the spring is stretched by by 10 cm, then its potential energy will be

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is :

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is:-

The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is:-

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 ----

The potential energy of a long spring when stretched by 2cm is U. If the spring is stretched by 8 cm the potential energy stored in it is……….

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