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| Q. |
The mirror used for the head light of a car is – |
| A. | spherical concave |
| B. | plane |
| C. | cylindrical |
| D. | parabolic concave |
| Answer» D. parabolic concave | |
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Explanation: A parabolic (or paraboloid or paraboloidal) reflector(or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. |
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