The Young’s double slit experiment is performed with blue light and green light of wavelengths 4360Å and 5460 Å respectively…..

Q. The Young’s double slit experiment is performed by with blue light and green light of wavelengths 4360 Å and 5460 Å respectively. If y is the distance of 4th maxima from the central one, then

(a) y_b = y_g

(b) y_b > y_g

(c) y_b < y_g

(d) y_b/y_g = 5460/4360

Ans : (c)

Sol:

$ \displaystyle y = \frac{n \lambda D}{d} $

⇒ y ∝ λ

y_b < y_g