Electric discharge in gases: Discharge tube, cathode rays, X-rays and their properties

The wavelength of x-rays is of the order of

What are X-rays?

What are cathode rays composed of?

Find the atomic number of the element that has a k_α X-ray line whose wavelength is 0.135 nm. Take Ryberg constant R = 1.097 × 10⁻⁷ m⁻¹.

Electrons in an X-ray tube are accelerated by a potential difference of 5.0 kV. If an electron produces one photon on impact with the target, what is the minimum wavelength of the resulting X-rays?
(consider h = 6.626 * 10^-34 Js and e = 1.6 * 10^-19 C)

X-rays travel in a straight line and are affected by:

Which of the following can be deflected by an electric field?

What are X-rays composed of?

An X-ray machine is operated at an accelerating voltage V volts, then the minimum wavelength of X-rays emitted from X-ray machine is: