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Consider sunlight incident on a slit of ...

Consider sunlight incident on a slit of width 10^4 `overset (@)(A)` . The image seen through the slit shall .

A

be a fine sharp slit white in colour at the centre

B

a bright slit white at the centre diffusing to zero intensities at the edges

C

a bright slit white at the centre diffusing to regiions of different colours

D

only be a diffused slit white in colour

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