Question

The magnification of an image formed by a convex lens is -2 what does it mean

Answer 1

Answer:

m = - 2

This means that the image is twice the size that of the object. And the - ve sign indicates that the image is Real and Inverted.

Answer 2

The magnification of an image formed is Erect, real and double the size of object.

Explanation:

The magnification of a lens means how large (or small) . a subject can be reproduced on the Image plane

It is given by the formula :

Magnification

= $\frac{h^{'} }{h} = \frac{v}{u} \\where \\h^{'}$= height of image

h = height of object

v = image distance

u = object distance

so magnification= -2

the image formed in convex lens is Erect, real and double the object.