Question

Express the magnification produced in a lens. Applying signs of convention show that magnification can be both positive and negative in case of convex lens

Answer 1

Answer:

In convex...

Explanation:

M=-(+v/_u) =h2/h1

M=v/u=h2/h if the image is virtual the magnification is positive.

In concave mirror...

M=-(-v/-u) =-h2/h1

M=-v/u=h2/h1

Here m will be negative magnification

Because if the image is real magnification depending a nature of images...