Which one of the following statements is <strong>correct</strong> regarding the travel of a light beam from a rare to a dense medium?
- A. A light beam travelling from a rare medium to a dense medium slows down and bends towards the normal. ✓
- B. A light beam travelling from a rare medium to a dense medium speeds up and bends towards the normal.
- C. A light beam travelling from a rare medium to a dense medium slows down and bends away from the normal.
- D. A light beam travelling from a rare medium to a dense medium speeds up and bends away from the normal.
Correct Answer: A. A light beam travelling from a rare medium to a dense medium slows down and bends towards the normal.
Explanation
When light travels from a rarer medium to a denser medium, its speed decreases, and it bends towards the normal due to refraction.
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