9.5.1 - Refraction at a spherical surface
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Practice Questions
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What is refraction?
💡 Hint: Think about the bending of light when it enters different substances.
What is Snell's Law?
💡 Hint: Check the proportion of sine functions involving the angles.
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Interactive Quizzes
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What does the refractive index symbolize?
💡 Hint: Think about how it affects light transitioning between substances.
Total internal reflection occurs when light...
💡 Hint: Remember when light cannot escape and is fully reflected.
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Challenge Problems
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An object is placed at 30 cm in front of a convex lens with a focal length of 25 cm. Calculate the image distance and determine if the image is real or virtual.
💡 Hint: Apply the lens formula carefully considering the sign convention.
Light travels from air (n = 1.0) into glass (n = 1.5). If the incidence angle in air is 45°, find the angle of refraction in the glass.
💡 Hint: Make sure to use calculator appropriately for finding sine inverse.
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