A ray of light is incident in air on a block of a transparent solid whose index of refraction is n = 1.25. what is the angle of incidence 0, for which total internal reflection will occur at the vertical face (point A) Hint Find first the angle of total reflection , then use the Snell's law to find the angle 0, A) Oa = 18.6° O B) Oa = 28.6° O C) ea = 38.6° O D) 8a = 48.6° O E) ea = 58.6°

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Chapter1: The Nature Of Light
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Problem 52P: A ray of light, emitted beneath the surface of an unknown liquid with air above it, undergoes total...
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A ray of light is incident in air on a block of a transparent solid
whose index of refraction is n = 1.25. what is the angle of incidence
e, for which total internal reflection will occur at the vertical face
(point A)
Hint Find first the angle of total reflection , then use the Snell's law
to find the angle 0,
O A) ea = 18.6°
B) 8a = 28.6°
C) ea = 38.6°
D) ea = 48.6°
O E) ea = 58.6°
Transcribed Image Text:A ray of light is incident in air on a block of a transparent solid whose index of refraction is n = 1.25. what is the angle of incidence e, for which total internal reflection will occur at the vertical face (point A) Hint Find first the angle of total reflection , then use the Snell's law to find the angle 0, O A) ea = 18.6° B) 8a = 28.6° C) ea = 38.6° D) ea = 48.6° O E) ea = 58.6°
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