A beam of light of λ = 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between first dark fringes on either side of the central bright fringe is :

Question

Dr. Abubacker · Accepted Answer

[Solution] Width of central maximum = $\frac{2\lambda D}{a} = \frac{2 	imes 600	imes10^{-9} 	imes 2}{10^{-3}} = 2.4$ mm. Answer (4).

Q. A beam of light of λ = 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between first dark fringes on either side of the central bright fringe is :

Explanation

Reviewed by Dr. Abubacker

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