A standard biological microscope is required to have a magnification of 200Ã. what is the focal length of the objective?

The focal length of the objective is L/20.

Explanation:

Given that,

Magnification of the standard biological microscope, m = 200

Let the magnification of the eyepiece is,

Let is the magnification of objective lens. The formula of the magnification is given by :

The formula of the magnification is given by :

L is length of microscope

is focal length of the objective

So, the focal length of the objective is L/20.

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