Question

The potential difference applied to an X-ray tube is increased. As a result, in the emitted radiation

• A. The intensity increases.
• B. The minimum wavelength increases.
• C. The intensity remains unchanged.
• D. The minimum wavelength decreases.

Answer 1

Answer: (C), (D)

The correct options are
C The intensity remains unchanged.
D The minimum wavelength decreases.

Upon increasing the potential difference applied to X-ray:
The energy with which the radiation is emitted is more, and $E=\frac{hc}{\lambda }$ increases, thus the wavelength (minimum) must decrease.
The intensity depends on the number of electrons ejected, which remains unchanged.