an object size of 7cm placed that 27cm in the front of concave mirror of focal length 18 cm. at what distance from the mirror should a screen be placed so as to obtain a sharp image of object ? find the nature and size of image.
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Given Focal length of concave mirror (f)= -18cm ... mirror should a screen be placed so that a sharp focused image can ... What is the image distance and image size?
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