In which case does total internal reflection occur? (2022)
Practice Questions
Q1
In which case does total internal reflection occur? (2022)
When light travels from a denser to a rarer medium
When light travels from a rarer to a denser medium
At the critical angle
None of the above
Questions & Step-by-Step Solutions
In which case does total internal reflection occur? (2022)
Step 1: Understand what a medium is. A medium is a substance through which light travels, like water or air.
Step 2: Know the difference between a denser medium and a rarer medium. A denser medium has a higher index of refraction (like water), while a rarer medium has a lower index of refraction (like air).
Step 3: Learn about angles. When light hits the boundary between two media, it can change direction depending on the angle it hits the surface.
Step 4: Identify the critical angle. The critical angle is a specific angle of incidence above which total internal reflection occurs.
Step 5: Remember the condition for total internal reflection. It happens when light travels from a denser medium to a rarer medium at an angle greater than the critical angle.
