Q. $K_{\alpha}$ characteristic $X$-ray refers to the transition
A) $n = 2\ $to$\ n = 1$
B) $n = 3\ $to$\ n = 2$
C) $n = 3\ $to$\ n = 1$
D) $n = 4$ to$\ n = 2$
Explanation
The correct answer is Option A: $n = 2\ $to$\ n = 1$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.