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A crown glass prism of refracting angle ...

A crown glass prism of refracting angle `A= 6^@` is to be achromatised for red and blue light using a flint glass prism. Find the angle of flint glass prism (A') and also, the mean deviation from the following data : `mu_b=1.531` `mu_r=1.520` `mu'_b=1.684` `mu'_r=1.662`

A

`9^(@),1.134^(@)`

B

`6^(@), 2.268^(@)`

C

`3^(@),3,334^(@)`

D

`3^(@),1.134^(@)`

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The correct Answer is:
D
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TARGET PUBLICATION-REFRACTION OF LIGHT -CRITICAL THINKING
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