Which of the following is not deflected by a magnetic field?

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

Which one of the following corresponds to a photon of highest energy?

The energies $E_1$ and $E_2$ of two radiations are $25 \ eV$ and $50 \ eV$ respectively. The relation between their wavelengths,i.e.,$\lambda_1$ and $\lambda_2$,will be:

The splitting of spectral lines under the influence of a magnetic field is known as .....

Which properties characterize electromagnetic radiation?