Question

The curve of angle of incidence versus angle of deviation shown below has been plotted for prism. The value of refractive index of the prism used is

A

3

B

2

C

32

D

23

Solution

The correct option is D √3 δM=2i−A 60=2(60)−A A=60∘ n=sin(A+δM2)sinA2 =sin60∘sin30∘=√3

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