Q. The shortest wavelength of $X$-rays emitted from an $X$-ray tube depends on the
A) Current in the tube
B) Voltage applied to the tube
C) Nature of gas in the tube
D) Atomic number of target material
Explanation
(b) $\lambda_{\min} = \frac{hc}{eV}$ where $h,c$ and $e$ are constants. Hence $\lambda_{\min} \propto \frac{1}{V}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.