Find the value of angle of emergence when an incident ray makes an angle of 40° with a normal to the air glass interface of the rectangular glass slab
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(a) Calculate the critical angle for glass air interface if a ray of light incident on a glass surface is deviated through 15
o
when angle of incident is 45
o
.
(b) A ray of light travels from denser medium having refractive index
2
to air, What should be the angle of refracted when angle of incident is 30
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Answer:
Angle of emergence is 40 degrees
Explanation:
Angle of incidence is 40 degrees (given)
We Know That
Angle of incidence = Angle of emergence (i=e)
Therefore, angle of emergence is 40 degrees
Hope it helps...
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