Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to light when it enters a new medium?
💡 Hint: Think about changes in how fast light travels.
Question 2
Easy
Define the normal in the context of refraction.
💡 Hint: Where do we measure angles from?
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?
- The bending of sound
- The bending of light
- The absorption of light
💡 Hint: Think about the bending effect seen in glass and water.
Question 2
True or False: The angle of incidence is always equal to the angle of refraction.
- True
- False
💡 Hint: Consider the changes in direction of light due to different media.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A light ray strikes the surface of water at an angle of incidence of 30 degrees. If the refractive index of water is 1.33, calculate the angle of refraction.
💡 Hint: Use the sine function to move from angles to refraction.
Question 2
If diamond has a refractive index of 2.42, determine how light entering from air bends at the boundary.
💡 Hint: Remember the order of densities for interpreting the change.
Challenge and get performance evaluation