What is the effect of increasing the angle of incidence beyond the critical angl
Practice Questions
Q1
What is the effect of increasing the angle of incidence beyond the critical angle in total internal reflection?
Increased intensity of reflected light
Decreased intensity of reflected light
No effect on intensity
Light is transmitted into the second medium
Questions & Step-by-Step Solutions
What is the effect of increasing the angle of incidence beyond the critical angle in total internal reflection?
Correct Answer: Increasing the angle of incidence beyond the critical angle increases the intensity of the reflected light.
Step 1: Understand the critical angle. The critical angle is the angle of incidence above which light cannot pass through a boundary and is instead reflected back.
Step 2: Know what total internal reflection is. Total internal reflection occurs when the angle of incidence is greater than the critical angle, causing all the light to reflect back into the medium.
Step 3: Realize what happens when you increase the angle of incidence beyond the critical angle. When you do this, the light does not escape; it reflects completely.
Step 4: Observe the effect on light intensity. As the angle of incidence increases beyond the critical angle, the intensity of the reflected light increases because more light is being reflected back.
