Q. Bragg’s equation will have no solution is
A) $\lambda > 2d$
B) $\lambda < 2d$
C) $\lambda < d$
D) $\lambda = d$
Explanation
(a) Bragg’s law states that $2d\sin{\theta = n\lambda}$ where $= 1,\ 2,\ 3\ldots..$ . If $\lambda > 2d,$ then $\sin\theta$ will be greater than 1 for $n = 1,$ which is not possible
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.