Q. 1

# A ray of light is

Let angle of deviation = δ  Where,

i = angle of incidence

e = angle of reflection

A = angle of prism

We also define,

r1 = angle of refraction on incident face of prism

r1 = angle of refraction on incident face of prism

Given,

i = 0

so, r1 = 0

r2 = 600

critical angle = θ Where μ = refractive index = 1.5  Since, So there will be a total internal reflection,

The reflected ray is incident at the base at 90o

So the angle of emergence = e = 0

Now angle of deviation is calculated as  So Or  Rate this question :

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