A parallel beam of light of wavelength 500 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1 m away.

Question 1

A parallel beam of light of wavelength 500 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1 m away. It is observed that the first minimum is at a distance of 2.5 mm from the centre of the screen. Find the width of the slit.

Question 2

λ = 500nm = 500 x 10-9m
D = 1m
The distance of first minimum from the centre of the screen,

kratos · Answer 1 · 2021-01-05T09:50:57+0000

λ = 500nm = 500 x 10-9m
D = 1m
The distance of first minimum from the centre of the screen,

A parallel beam of light of wavelength 500 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1 m away.

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A parallel beam of light of wavelength 500 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1 m away.

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1 Answer

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