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| 1. |
The radius of curvature of concave mirror is 12 cm. Then, the focal length will be (a) 12 cm (b) 6 cm (c) -24 cm (d) -6 cm |
| Answer» 6CM FOCAL length F of CONCAVE mirror = 1/2 of radius of curvature = 12/2 = 6 cm . | |