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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 9 - Ray Optics > The magnification of an object placed in front of a convex lens of focal length 20 cm is + 2. To obtain a magnification of -2, the object has to be moved a distance equal to:

The magnification of an object placed in front of a convex lens of focal length 20 cm is + 2. To obtain a magnification of -2, the object has to be moved a distance equal to:

The magnification of an object placed in front of a convex lens of focal length 20 cm is + 2. To obtain a magnification of -2 the object has to be moved a distance equal to: