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| 1. |
The radius of curvature of convex mirror is 20cm. Find it\'s focal length |
| Answer» For spherical mirrors of small apertures, the radius of curvature is twice the focal length i.e. R = 2f . Here radius of curvature R = 20 cm, focal length f = ?{tex}f\\;=\\frac{R\\;}2=\\frac{20}2=\\;\\;10\\;cm{/tex}Focal length of mirror is 10 cm. | |