An object is placed 25 cm away from a converging mirror of focal length 20 cm discuss the effect on the position and image of the object of the position of abject changes from 25 cm to 15 cm . justify your answer without using mirror formula
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Given that the focal length of the mirror is 20 cm, When the object is placed at 25 cm from the mirror the image would form at distance greater than twice the focal length ( image would form beyond 2f ). ie; at a distance greater than 40 cm. The image would be REAL, INVERTED and ENLARGED.
When the object is shifted to 15 cm from the mirror the object actually lies within the focus of the mirror. Here the image is formed BEHIND THE MIRROR, it would be VIRTUAL, ERECT and ENLARGED.
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