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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Knowledge
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