Question

The wavelength of continuous X-rays is proportional to

• A. Intensity of incident electron beam.
• B. Temperature of the target.
• C. Intensity of X-rays.
• D. Inversely to the energy of electrons striking the target.

Answer 1

Answer: (D)

Inversely to the energy of electrons striking the target.

The wavelength($\lambda$) of continuous X-rays related to the energy of the electron, E, by the relation:

$\frac{hc}{\lambda }=E$.

So $\lambda$ is inversely proportional to energy of striking electrons.