an object of 7 cm is placed at 27 cm infront of a concave mirror of focal length 18 cm. at what distance from the mirror should a screen be placed so that a sharp focused image can obtained ? find the size and the nature of image
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We are given a concave mirror which has a focal length of 18 cm. An object of height 7 cm is placed in front of the concave mirror such that it is 27 cm away from the mirror. The image of the object which was kept 27 cm away from the mirror is formed at 54 cm in front of the mirror.
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