Q. Conditions of diffraction is
A) $\frac{a}{\lambda} = 1$
B) $\frac{a}{\lambda} \gg 1$
C) $\frac{a}{\lambda} \ll 1$
D) None of these
Explanation
(a) For diffraction size of the obstacle must be of the order of wavelength of wave, $i.e.\ a \approx \lambda$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.