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Q. |
The type of mirrors used in the headlamp of cars is – |
A. | Parabolic concave |
B. | Plane |
C. | Spherical convex |
D. | Cylindrical concave |
Answer» A. Parabolic concave | |
Explanation: Curved mirror that reflects light from its inner surface, the curve being inward. It may be either circular or parabolic in section. A concave mirror converges parallel light rays inward to the point of principal focus. The image formed by a concave mirror is real (reduced and inverted) if the object is not too close to the mirror. A real image is formed at the point of convergence. |
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