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A beam of light of wavelength 600nm from...

A beam of light of wavelength `600nm` from a distance source falls on a single slit `1.00mm` side and the resulting diffraction pattern is observed on a screen `2m` away. The distance between the first dark frings on either side of the central bright fringe is

A

(a) `1.2cm`

B

(b) `1.2mm`

C

(c) `2.4cm`

D

(d) `2.4mm`

Text Solution

Verified by Experts

The correct Answer is:
D
`(2Dlambda)/(d)=(2xx2xx600xx10^-9)/(1xx10^-3)m`
`=24xx10^-4m=2.4mm`.
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