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A plane wave of wavelength 5500 overset@...

A plane wave of wavelength `5500 overset@A` is incident normally on a slit of width `2 xx 10^-2 cm`. The width of the central maximum on a screen 50 cms away is

A

`2.5 xx 10^-3 cm`

B

`2.75 xx 10^-3 cm`

C

`27.5 xx 10^-3 cm`

D

`5.50 xx 10^-3 cm`

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