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A thin prism P with angle 4^(@) and made...

A thin prism P with angle `4^(@)` and made from glass of refractive index 1.54 is combined with another thin prism P made from glass of refractive index 1.72 to produce dispersion without deviation The angle of prism P is

A

`delta_(m)=r`

B

`delta_(m)=1.5r`

C

`delta_(m)=2r`

D

`delta_(m)=r/2`

Text Solution

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The correct Answer is:
a
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