# Magnification

The magnification can be calculated if you know the actual size of the object and its image size.

## Demo

In this tutorial you will learn how to calculate the magnification of objects in given examples.

The equation is written like this:

Magnification = image height / object height

## Chilled practice question

Copy out the question and attempt to calculate the answer before watching the solution. Write down the equation and show all of your working, remember to add the units to your answer, this routine will guarantee you maximum marks in an exam. Mark your solution and correct if needed.

Calculate an objects magnification if the image height is 70 mm and the object height is 28 mm.

## Frozen practice question

Copy out the question and attempt to calculate the answer before watching the solution. Write down the equation and show all of your working, remember to add the units to your answer, this routine will guarantee you maximum marks in an exam. Mark your solution and correct if needed.

Calculate the image height if an object height is 25 mm and the magnification is 3.5.

## Science in context

The magnification can be calculated if you know the actual size of the object and its image size.

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