Q. The figure represents the observed intensity of $X$-rays emitted by an $X$-ray tube as a function of wavelength. The sharp peaks $A$ and $B$ denote
A) Band spectrum
B) Continuous spectrum
C) Characteristic radiations
D) White radiations
Explanation
(c) In $X$-ray spectra, depending on the accelerating voltage and the target element, we may find sharp peaks super imposed on continuous spectrum. These are at different wavelengths for different elements. They form characteristic $X$-ray spectrum
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.