Which electromagnetic waves are used in the medical field to destroy cancer cells?

The correct ascending order of the wavelengths of the following electromagnetic waves is: Ultraviolet,$X$-rays,infrared,gamma rays,and visible light.

Which of the following represents the wavelength range of infrared rays?

Which rays are not a portion of the electromagnetic spectrum?

$TV$ waves have a wavelength range of $1-10 \, m$. Their frequency range in $MHz$ is

Write the range of ultraviolet waves.