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A thin prism of angle 1.2 and another thin prism of angle 1 are joined to make and arrangement for dispersion without devivation . If the refractive index of the material of the first prism is 1.5 , the refractive index of the material of the second prism is ?

A thin prism of angle 1.2 and another thin prism of angle 1 are joined to make and arrangement for dispersion without devivation . If the refractive index of the material of the first prism is 1.5 , the refractive index of the material of the second prism is ?

Grade:12

1 Answers

Abhishek Kumar
askIITians Faculty 255 Points
7 years ago
Deviation for small angles = (\mu -1)A
For net zero deviation,
(\mu -1)A_{1} = (\mu -1)A_{2}

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