In single slit diffraction of light of wavelength λ by a slit of width e , the size of the central maximum on a screen at a distance b is

Question

In single slit diffraction of light of wavelength λ by a slit of width e , the size of the central maximum on a screen at a distance b is, 2 bλ + e, 2 bλ e, 2 bλ e + e, 2 bλ e - e

MARKS App · Accepted Answer

The direction in which the first minima occurs is θ (say). Then esinθ = λ or eθ = λ θ = λ e ∵ sinθ = θ when θ is small Width of the central maximum = 2 bθ + e = 2 b λ e + e

Search any question & find its solution

Looking for more such questions to practice?