9.5.2 - Refraction by a lens
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Practice Questions
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What is refraction?
💡 Hint: Think about what happens to light when it enters water.
What does the focal length of a lens determine?
💡 Hint: Consider what happens when you change the shape of the lens.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the thin lens formula?
💡 Hint: Think about how lenses operate when light interacts with them.
True or False: The lens maker's formula is only applicable to concave lenses.
💡 Hint: Consider both convex and concave types.
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Challenge Problems
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Design a lens system with two lenses to achieve a specific magnification for distant objects. Outline the needed parameters.
💡 Hint: Consider the final focal point to achieve the proper image distance.
Given a lens with certain curvature parameters and material, derive the focal length and assess its applicability in real-world systems.
💡 Hint: Check how varying materials change the refractive index.
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