Question

Define magnification of a lens.

Answer 1

1. The magnification produced by the lens is defined as the ratio of the height of an image to the height of an object.
2. The formula for magnification can be given by the expression $magnification\left(m\right)=\frac{Heightoftheimage(h\text{'})}{Heightoftheobject\left(h\right)}$.
3. The magnification produced by a lens is also equal to the ratio of image distance to the object distance.
4. The formula for magnification can also be given by the expression $magnification\left(m\right)=\frac{Imagedis\tan ce\left(v\right)}{Objectdis\tan ce\left(u\right)}$.