A light wave of wavelength 'λ' is incident on a slit of width 'd'. The resulting diffraction pattern is observed on a screen at a distance 'D'. If linear width of the principal maximum is equal to the width of the slit, then the distance D is - VgyanHub

Question:

A light wave of wavelength ‘λ’ is incident on a slit of width ‘d’. The resulting diffraction pattern is observed on a screen at a distance ‘D’. If linear width of the principal maximum is equal to the width of the slit, then the distance D is

Options :

(a) d/λ
(b) d^2/2λ
(c) 2λ/d
(d) 2λ^2/d

Answer :

(b) d²/2λ

Answer Steps :

step 1

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