Question

calculate magnification of lens , if image distance is twice the distance of object​

Answer 1

The formulation for magnification is given by....

m = v/u

Now according to question....

v= 2u

Therefore......m= 2u/u

m = 2

Answer 2

Answer:

M=f¬o/f¬e

Explanation:

In the science of optics, the magnification of an object like a lens is the ratio of the height of the image you can see to the height of the actual object being magnified. For instance, a lens that makes a small object appear very big has a high magnification, while a lens that makes an object appear small has a low magnification. An object's magnification is generally given by the equation M = (hi/ho) = -(di/do), where M = magnification, hi = image height, ho = object height, and di and do = image and object distance.