Q. An $X$-ray tube is operated at $50\ kV.$ The minimum wavelength produced is
A) $0.5\ \mathring{\mathrm{A}}$
B) $0.75\ \mathring{\mathrm{A}}$
C) $0.25\ \mathring{\mathrm{A}}$
D) $1\ \mathring{\mathrm{A}}$
Explanation
(c) $\lambda_{\min} = \frac{12375}{50 \times 10^{3}}\mathring{\mathrm{A}} = 0.247 = 0.25\mathring{\mathrm{A}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.