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| 1. |
The radius of curvature of a concave mirror is 50 cm. Where should an object be placed from the mirror so as to form its image at infinity ? |
| Answer» Solution :`because` Radius of curvature of mirror R = 50 cm, focal length `f = (R)/(2)` = 25 cm. To form an IMAGE at infinity the object should be placed at focus point i.e., 25 cm from the mirror. | |