| 1. Have you seen a mirage which is an illusion of the appearance of water on a hot road or in a desert? |
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Yes. |
| 2. Have you seen that objects beyond and above a holi fire appear to be shaking? Why does this happen? |
| → Yes. The objects beyond and above the holi fire appear to be shaking. The temperature of air beyond and above a holy fire changes all the time. Thus, the density of an air also changes constantly. Therefore, the direction of propagation of the rays of light approaching us from the objects beyond and above the holy fire changes constantly. Hence, those objects appear to be shaking. 2 Marks |
Watch Video (0:40): |
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A short video showing the appearance of a mirage: |
Here is a Wikipedia page on Mirage: |
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