Two slits in YDSE are placed 2 millimetre from each other. Interference pattern is observedon a screen placed 2 m from the plane of slits. What is the

Question

Two slits in YDSE are placed 2 millimetre from each other. Interference pattern is observedon a screen placed 2 m from the plane of slits. What is the

Two slits in YDSE are placed 2 millimetre from each other. Interference pattern is observedon a screen placed 2 m from the plane of slits. What is the fringe width for a light of wavelength 400 nm?

Monjur Alahi

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2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Given, `d=2 mm =2xx10^(-3)m,D=2m`
Wavelength, `lambda=400 nm =400xx10^(-9)` m
:. Fringe width, `beta=(lambdaD)/d=(400xx10^(-9))/(2xx10^(-3))=200xx10^(-6)m`

5 views Answered 2023-02-05 15:29