Question

White light is used to illuminate the two slits in a Young’s double slit experiment. The separation between the slits is b and the screen is at a distance d(>> b) from the slits. At a point on the screen directly in front of one of the slits, certain wavelengths are missing. Some of these missing wavelengths are

(a) λ = b²/d

(b) λ = 2b²/d

(c) λ = b²/3d

(d) λ = 2b²/3d

Answer 1

Correct option: (A, C)

Explanation: 

If certain wavelength are missing then they are making minima.