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An object of 3 cm in length is placed at a distance of 20 cm infront of a convex mirror of radius of curvature 30 cm find the position, nature and size of the image |
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Answer» Given, a convex mirror, u = -20 cm ; f = 30cm By mirror formula, 1/f = 1/v + 1/u, we get v = +12 cm Height of object = 3 cm Let height of image = x -v/u = x/3 -12/20 = x/3 x = 9/5 Therefore, position of object is 12 cm (behind the mirror) Nature of object is virtual Size of object = 9/5 cm This solution is strictly for practice purposes, do not use it during examinations. The upper answer is correct |
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