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An object is placed at distance 15 cm from a concave mirror of focal length 10 cm. Find position, nature and magnification of image.
object distance, u = - 15 cm
image distance, v = ?
focal length = -10 cm (focal length of concave mirror)

Negative sign indicate that the image will be formed on same side as that of object.
Thus, image is real and inverted.

m = - v/u = - (-30/-15) = - 2

Thus magnification of the image is -2.
Negative sign indicates that the image formed is inverted and value 2 inidicates that the image formed is twice the size of the object.
Thus,nature of image is real, inverted and magnified.
Answered by Shiwani Sawant | 20 Sep, 2021, 01:39: PM

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