Area of nuclear cross-section is measured in 'Barn'. It is equal to

The nuclear cross section is measured in barn'. It is equal to

The nuclear cross-section is measured in barn, it is equal to

One barn is equal to

One barn is equal to

one barn is equal to

Barn is used to measure the cross-sectional area of the mucles of an atom. IT is equal to

Fermi is a unit of length for measuring the nuclear diameter. It is equal to

Resistance of a conductor of length l and area of cross-section A is R. If its length is doubled and area of cross-section is halved, then find its new resistance.