Question

object distance and image distance of lens are -60cm and -20cm respectively then the magnification of lens will be​

Answer 1

Answer:

magnification =v/u

according to given data

v=-20cm

u=-60cm

magnification =1/3

Answer 2

Given:

object distance (u) = -60 cm

image distance (v) = -20 cm

To Find:

magnification of lens =?

Solution:

If we first try to explain what is magnification then we get that, it simply just represents how small or large the apparent size of the image of the object appears to be from its physical size.

Mathematically, one can easily calculate the value of magnification by simply just dividing the height of image to height of object or dividing the distance of image from lens to distance of object from lens.

Using the same we know that,

m = v/u

now putting given values,

m = -20/-60 = 1/3 = 0.33

Thus the magnification of lens is 0.33