Question

Which one of the following statement is correct about Fraunhofer diffraction patter?

i It is observed when the screen is held at focal length of convex

ii It is observed when the screen is held at distance of 2f from aperture"

iii Arises due to interference of wave fronts

IV. Arises due to interference of wave lets

A. I only
B. 1 & ll only
C. I & III only
D. IV only​

Answer 1

Answer:

IV. Arises due to interference of wave lets