Question

A 17-cm-long microscope has an eyepiece with a focal length of 2.7 cm and an objective with a focal length of 0.35 cm . What is the approximate magnification?

Answer 1

Magnification is approximately 7.71

Step-by-step explanation:

Magnification is the process of enlarging the apparent size of an object. For two lenses in sequence such as in a microscope, the magnification is determined by the ratio of the focal length of the eyepiece lens to the focal length of the objective lens.

The focal length of a lens is the distance between the center of a lens and the point (focal point) where parallel rays converge after passing through the lens.

`M` = magnification

`f_(e)` = focal length of eyepiece lens

`f_(o)` = focal length of objective lens

`M = (f_(e))/(f_(o))`

`M = (2.7)/(0.35)`

`M = 7.71`