A thin prism having refracting angle 10º is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be - VgyanHub

Question:

A thin prism having refracting angle 10º is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be

Options :

(a) 4 degree
(b) 6 degree
(c) 8 degree
(d) 10 degree

Answer :

(b) 6 degree

Answer Steps :

step 1

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