Question

if the angle of prism is 60 degree and light suffers minimum deviation through the prism ,then the angle of reflection will be​

Answer 1

Answer:

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Answer 2

Answer:

your answer

Explanation:

Minimum deviation δ=2i−A

where A is prism angle A=60

o

For minimum angle the angle of refraction should be half of prism angle.

So r=A/2=30

o

now using the snell's law

n

air

sini=n

glass

sinr

sini=1.5sin30

i=48.6

o

, incidence angle

Minimum deviation δ=2i−A

δ=2×48.6−60=37.9

o