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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to light when it passes from air into water?
💡 Hint: Think about the change in medium.
Question 2
Easy
State Snell's Law.
💡 Hint: It relates angles to a constant.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is refraction?
- Bending of light
- Reflection of light
- Absorption of light
💡 Hint: Think about what happens when light enters water.
Question 2
True or False: The critical angle is the angle of incidence for which light is completely refracted.
- True
- False
💡 Hint: Recall the definition of critical angle.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the refractive index of a material if the angles of incidence and refraction are 40° and 25°, respectively.
💡 Hint: Use a calculator to find the sine values.
Question 2
An optical fiber has a core refractive index of 1.5 and casing of 1.45. Determine the critical angle for light passing from the core to the casing.
💡 Hint: Make sure to use the correct surface order.
Challenge and get performance evaluation