Penetrating power of `X` - rays can be increased by

Penetrating power of X - rays depends on

penetrating power of gamma - rays is-

Penetrating power of X-rays increase with the increase in its

Penetrating power of X - rays does not depend on

The penetration power of X -ray increases with the increases in its:

(a) What is meant by soft and hard X-rays ? How can the intensity and penetrating powers of X-rays be controlled ? (b) Derive an expression for total energy of an electron in nth orbit of hydrogen atom.

The percentage power of X -ray increases with the increases in its: