Light of wavelength 600 nm is incident n...

Light of wavelength 600 nm is incident normally on a slit of width 0.2 mm. The angular width of central maxima in the diffraction pattern is

`6xx10^(-3) rad`

`4xx10^(-3) rad`

`2.4xx10^(-3) rad`

`4.5xx10^(-3) rad`

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