Question

Young's double slit experiment is carried out by using green red and blue light one colour at a time the fringe widths recorded are XG, XR, XB respectively then​

Answer 1

Answer:

Fringe width β=

d

λD

Therefore for the same setup but different colours, βαλ

So larger is the wavelength, larger is the fringe width.

λ

R

>λ

G

>λ

B

Thus, β

R

>β

G

>β

B