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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is refraction?
💡 Hint: Think about the bending of light when it enters different substances.
Question 2
Easy
What is Snell's Law?
💡 Hint: Check the proportion of sine functions involving the angles.
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 does the refractive index symbolize?
- Speed of light
- Bending of light
- Ratio of speeds in different media
💡 Hint: Think about how it affects light transitioning between substances.
Question 2
Total internal reflection occurs when light...
- True
- False
💡 Hint: Remember when light cannot escape and is fully reflected.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An object is placed at 30 cm in front of a convex lens with a focal length of 25 cm. Calculate the image distance and determine if the image is real or virtual.
💡 Hint: Apply the lens formula carefully considering the sign convention.
Question 2
Light travels from air (n = 1.0) into glass (n = 1.5). If the incidence angle in air is 45°, find the angle of refraction in the glass.
💡 Hint: Make sure to use calculator appropriately for finding sine inverse.
Challenge and get performance evaluation