If the voltage of an $X$-ray tube is doubled,the intensity of the $X$-rays will be ...... .

The potential difference applied to an $X$-ray tube is increased. As a result,in the emitted radiation

The waves emitted when a metal target is bombarded with high energy electrons are

$X$-rays of wavelength $\lambda = 1\,\mathring{A}$ have a frequency of:

Write the sources and uses of $X$-rays and gamma rays.

If the wavelength of the $K_\alpha$ line of an element with atomic number $43$ is $\lambda$,then the wavelength of the $K_\alpha$ line of an element with atomic number $29$ is: