4 - Refraction of Light at Plane Surfaces
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Practice Questions
Test your understanding with targeted questions
Define refraction.
💡 Hint: Think about how light behaves in different materials.
What is the angle of incidence?
💡 Hint: Look at the relationship of incident ray to the normal line.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is refraction?
💡 Hint: Think about how light appears in different environments.
True or False: The incident ray, the refracted ray, and the normal all lie in the same plane.
💡 Hint: Visualize these elements together.
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Challenge Problems
Push your limits with advanced challenges
A person looks at a quarter submerged in a glass of water at an angle. If the quarter appears to be 45% larger than its actual size, calculate the angle of refraction using the formula for refractive index.
💡 Hint: Consider how the refractive index will influence the perceived size and angle.
Assuming light travels in a medium with a refractive index of 1.5, if the incident ray is at 30 degrees, what is the angle of refraction?
💡 Hint: You'll need to calculate the sine of both angles.
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