Lens Magnification Calculations | GCSE Physics Practice
Magnification is a ratio that tells you how much larger an image is than the original object.
Calculate magnification if image height is 4cm and object height is 1cm.
What is Lens Magnification Calculations | Practice?
"The ratio of the image height to the object height."
Which of these is an example of a longitudinal wave?
If an object absorbs more radiation than it emits, its temperature will ____.
Arrange these EM waves in order of INCREASING energy: Radio, Visible, UV, Gamma.
The distance between the same point on two adjacent waves is called the ____.
Size Ratios
Magnification = image height / object height.
It is a pure number (no units).
If magnification is less than 1, the image is diminished.
Always ensure image and object heights are in the same units (e.g. both cm).
Calculation Check: Magnification should always be calculated from heights, never focal lengths!
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