Q. 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 decreases
D) The minimum wavelength decreases
Explanation
(d) $\lambda_{\min} = \frac{hc}{eV}\ $or$\ \lambda_{\min} \propto \frac{1}{V}$ On increasing potential, $\lambda_{\min}$ decreases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.