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Q. Which of the following statement(s) is/are correct for critical angle?
  1. Refractive angle is 90°
  2. Light ray goes from rarer to denser medium
  3. Light ray goes from denser to rarer medium
Select the correct option from the codes given below:
Answer: Only 2 & 3
Notes: Angle of incidence is the angle between an incident ray and the normal. Angle of refraction is the angle between a refracted ray and the normal. When the angle of refraction is equal to 90°, the angle of incidence is called the critical angle. In this case, the light ray goes from denser to rarer medium.

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📌 Question Number: 112 in Physics GK 19 - Light and Human Eye in the above course in App.