Question

object distance is 3 and image distance Is 12 find magnification

Answer 1

Answer:

Magnification:

• It is the action of magnifying something.
• It is the ratio of the image distance(v) to the object distance(u).
• It is given by -v/u.

Given:

We have been given that the object distance(u) of an object is 3cm and its image distance(v) is 12cm.

To Find:

We need to find the magnification.

Solution:

We know that magnification is given by:

-v/u.

Substituting the given values we have,

magnification(m) = -v/u

= -12/3

= -4

As the magnification is -4 which is negative, this means that the image is inverted.

Hence the magnification is -4.