The critical angle for total internal reflection occurs when light travels from:
Practice Questions
Q1
The critical angle for total internal reflection occurs when light travels from: (2019)
Air to water
Water to air
Glass to air
Air to glass
Questions & Step-by-Step Solutions
The critical angle for total internal reflection occurs when light travels from: (2019)
Step 1: Understand what total internal reflection is. It happens when light hits the boundary between two different materials and reflects back into the denser material instead of passing through.
Step 2: Identify the two types of materials involved. One is a denser medium (like water) and the other is a less dense medium (like air).
Step 3: Know that the critical angle is the specific angle of incidence at which total internal reflection occurs. This angle is only relevant when light is moving from the denser medium to the less dense medium.
Step 4: Conclude that the critical angle occurs when light travels from a denser medium (like water) to a less dense medium (like air).
