When Magnification Is Positive and Negative?

The sign of the magnification tells us the orientation of the image. If the sign is positive, then the image is upright. If the sign is negative, then the image is upside-down. In the examples above, we can see that amount by which an object will be magnified changes depending on its distance from the focal point.

When the magnification is positive and negative?

Magnification of a convex mirror is always positive , but that of a concave mirror may be both positive or negative . This magnification can tell us about the nature of the image based on the sign itself. If the ratio is negative then the image is real and inverted.

In which mirror magnification is positive?

The sign of magnification depend on the sign convention chosen. According to the new Cartesian sign conventions, magnification for a convex mirror is positive because image formed by a convex mirror is always virtual and erect. A concave mirror can form virtual or erect images and also real, inverted images.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.