The angle of prism is 5^(@) and its refr...

The angle of prism is `5^(@)` and its refractive indices for red and violet colours are 1.5 and 1.6 respectively. The angular dispersion produced by the prism is

A

`7.75^(@)`

B

`5^(@)`

C

`0.5^(@)`

D

`0.17^(@)`

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The correct Answer is:

c

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