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A screen is placed 2m away from the sing...

A screen is placed `2m` away from the single narrow slit. Calculate the slit width if the first minimum lies `5 mm` on either side of the central maximum. Incident plane waves have a wavelength of `5000 Å`.

A

`2 xx 10^(-4)` m

B

`2 xx 10^(-3)` cm

C

`2xx10^(-4)` cm

D

None

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