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## Homework Statement

An observer looks at a small object using a magnifying glass with the focal length of 12cm. Distance from his eye to the magnifying glass is 1cm. The shortest distance at which he sees clearly is 25cm and the largest is when the image of the object is in the distance infinite. Minimal and maximal values of the distance of the object from the magnifying glass at which the object is seen clearly is...

## Homework Equations

##\frac{1}{f}=\frac{1}{p}+\frac{1}{q}## - the mirror equation

## The Attempt at a Solution

I dont know if the mirror equation can be applied here and to be honest i dont know what these information tell me...

Focal length is given and the ##1cm## is supposed to be the ##p## in the equation, the distance of the observer to the glass, right? Im not sure of what the smalest and the largest distance of clear sight are...could you help?