In a double slit experiment, the two slits are `1mm` apart and the screen is placed `1m` away. A monochromatic light of wavelength `500nm` is used. Wh

Question

In a double slit experiment, the two slits are `1mm` apart and the screen is placed `1m` away. A monochromatic light of wavelength `500nm` is used. Wh

In a double slit experiment, the two slits are `1mm` apart and the screen is placed `1m` away. A monochromatic light of wavelength `500nm` is used. What will be the width of each slit for obtaining ten maxima of double slit within the central maxima of single-slit pattern?
A. `0.2 mm`
B. `0.1 mm`
C. `0.5 mm`
D. `0.02 mm`

Monjur Alahi

5 views

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

Correct Answer - A
Given `d=1mm=1xx10^(-3)mD=1m`
`lambda=500nm=5xx10^(-7)m`
As width of central maxima = width of 10 maxima
`:. (2Dlambda)/a=10((lambdaD)/d)rArra=d/5=10^(-3)/5=0.2xx10^(-3)m`
`a=0.2mm`

5 views Answered 2023-02-05 15:29