Question

a prism has an angle 60° and the minimum angle of deviation 38°, calculate the refractive index of material of the prism. (take sin49° = 0.75).​

Answer 1

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Answer 2

Answer:

refractive index of Prism = sin((A+D)/2)/sin(A/2)

Given

A = 60,D= 38

Explanation:

(A+D)/2=(60+38)/2=98/2=49

sin((A+D)/2)=sin49=0.75

sin(A/2)=sin(60/2)=sin30=0.5

sin((A+D)/2)/sin(A/2)=0.75/0.5

=1.5

refractive index of Prism = 1.5