Question

A magnifier has a magnification of 8 x. How far from the lens should an object be placed so that it’s virtual image is at the near-point distance of 25 cm?

Answer 1

The distance of the object from the lens is 3.12 cm.

What is magnification?

Magnification is the process of of enlarging an apparent size of an object.

Object distance

The object distance is calculated using the following lens formula;

$M = \frac{V}{U}$

where;

• M is the magnification
• V is the image distance
• U is object distance

$- 8 = \frac{-25}{U} \\\\U = \frac{-25}{-8} \\\\U = 3.12 \ cm$

Thus, the distance of the object from the lens is 3.12 cm.

Learn more about object distance here: brainly.com/question/24894435