A concave mirror gives an image three times as large as the object when placed at a distance of 20 cm from it. For the image to be real

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A concave mirror gives an image three times as large as the object when placed at a distance of 20 cm from it. For the image to be real, the focal length should be:
08
Nov
A concave mirror gives an image three times as large as the object when placed at a distance of 20 cm from it. For the image to be real, the focal length should be: A concave mirror gives an image three times as large as the object when placed at a distance of 20 cm [...]
Posted in: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 ,
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