The filament current in the electron gun of a coolidge tube is increased while the potential difference used to accelerate the electrons is decreased. As a result, in the emitted radiation

Options

A. the intensity increases while the minimum wavelength decreases
B. The intensity decreases while the minimum wavelength increases
C. the intensity as well as the minimum wavelength increases
D. the intensity as well as the minimum wavelength decreases

Answer

C

Explanation

When filament current is increased, more electrons are emitted from electron gun. Due to which the intensity of electrons increases.
As `lamda_("min")=(hc)/(eV)`, so as V decreases, `lamda_("min")` increases.