If the potential difference applied to an X ray tube is doubled while keeping the separation between...........

General Science (NDA) Physics

If the potential difference applied to an X-ray tube is doubled while keeping the separation between the filament and the target as same, what will happen to the cutoff wavelength?

Will remain same

Will be doubled

Will be halved

Will be four times of the original wavelength

Explanation:

If the potential difference applied to the tube is doubled and the separation between the filament and the target is also doubled, the cutoff wavelength, will remain unchanged.
Thus, cutoff wavelength will be halved if the the potential difference applied to the tube is doubled.