A ray of light passes from air into glass at an angle. What happens to its direction?
Answer and explanation
Correct answer: B. It bends toward the normal
- Step 1: Light travels more slowly in glass than in air. Step 2. Entering a slower medium, the ray bends toward the normal. Answer: It bends toward the normal. Why not the others: Total reflection needs the opposite direction, from the denser medium.
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