Splitting of spectral lines when atoms are subjected to a strong electric field is called:

The charge on gamma rays is

State the characteristics and uses of $X$-rays.

The laser in an audio compact disc uses light of wavelength $7.8 \times 10^2 \ nm$. What is the frequency of light emitted by the laser?

Explain the production,characteristics,and uses of $X$-rays.

The energy of a radiation of wavelength $8000 \ \mathring{A}$ is $E_1$ and energy of a radiation of wavelength $16000 \ \mathring{A}$ is $E_2$. What is the relation between these two?