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Question
Fill in the following blank with suitable word:
Light bends when is passes from water into air. We say that it is ............
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Solution
Light bends when is passes from water into air. We say that it is refracted.
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When a ray of light travels from air to glass, it bends .......... the normal.
What do you understand by refraction of light?
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Explain with diagrams how refraction of incident light takes place from
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- normal to the surface separating the two media.
Match the following:
| Column I | Column II | ||
| 1. | r > 90 | a. | Light gazes at the surface of separation between the two modes. |
| 2. | r = 90 | b. | No refraction. |
| 3. | r < 90 | c. | Refracted ray away from the normal |
