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| Q. |
'Mirage' is an example of – |
| A. | refraction of light only |
| B. | total internal, reflection of light only |
| C. | refraction and total internal reflection of light |
| D. | dispersion of light only |
| Answer» C. refraction and total internal reflection of light | |
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Explanation: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky. In contrast to a hallucination, a mirage is a real optical phenomenon which can be captured on camera, since light rays actually are refracted to form the false image at the observer's location. As light passes from colder air across a sharp boundary to significantly warmer air, the light rays bend away from the direction of the temperature gradient. |
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