An object is kept at a distance 20 cm from a concave mirror of focal length 10 cm. The position of image will be what ?
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Hence the position of image will be at infinity means the position is indefinite. Originally Answered: What is the position of an image when an object is placed at a distance of 20 cm from a concave mirror of focal length 20 cm? When an object is placed on the focus of a concave mirror the image is formed at infinity.
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