Question

The light of wavelength 5500 Å is falling normally on an aperture of width 22 × 10⁵cm. Find the angular positions between two minima on both side of central maxima.

Answer 1

Given, λ = 5500 Å = 5500 × 10^-10
m = 55 × 10^-8 m; α = 22 × 10^-5 cm = 22 × 10^-7 m;
θ₁ =?; θ₂ =?