Practice - Refraction
Practice Questions
Test your understanding with targeted questions
What is refraction?
💡 Hint: Think about what happens to light when it enters water.
What does a higher index of refraction indicate?
💡 Hint: Consider how light behaves in different materials.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to waves when they pass from one medium to another?
💡 Hint: Think about how light behaves in different materials.
True or False: Light can reflect completely across a boundary when entering a medium with a lower index.
💡 Hint: Remember what we defined as the critical angle.
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Challenge Problems
Push your limits with advanced challenges
A light ray strikes water at a 45-degree angle. Calculate the angle of refraction in water, given that the indices of refraction are 1 for air and 1.33 for water.
💡 Hint: Remember to use the sine function for calculation.
In a fiber optic cable made of glass (n = 1.5), what is the critical angle when light travels from glass to air (n = 1)?
💡 Hint: Think about how total internal reflection keeps light in.
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Reference links
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