Question 335: Ray Optics

Question

A thin prism of angle 15
o
made of glass of refractive index $$\mu $$
1
= 1.5 is combined with another prism of glass of refractive index $$\mu $$
2
= 1.75. The combination of the prisms produces dispersion without deviation. The angle of the second prism should be

Accepted Answer

For without deviation
$${A \over {A'}} = {{\mu ' - 1} \over {\mu  - 1}}$$
$$ \Rightarrow $$ $${{15} \over {A'}} = {{1.75 - 1} \over {1.50 - 1}}$$
$$ \Rightarrow $$ A' = 10
o

Answer

5
o

Answer

7
o

Answer

10
o

Answer

12
o

Ray Optics

A thin prism of angle 15 o made of glass of refractive index $\mu 1 = 1.5 is combined with another prism of glass of refractive index \mu $ 2 = 1.75. The combination of the prisms produces dispersion without deviation. The angle of the second prism should be

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