What are gamma rays used for?
Night vision equipment
Radiotherapy
CT scans
How can radio waves be detected?
Resonance in electronic circuits
The eye
Heating of skin
What are the common uses of microwaves (the waves)?
Satellite navigation
TV signals
Disco lights
Mobile phones
Heaters
All EM waves are longitudinal
X-rays can be produced by nuclear decay
What are the possible wavelengths of visible light?
10^-12 - 10^-7
10^-3 - 7.4 x 10^-7
7.4x10^-7 - 3.7x10^-7
Which of the following images is an example of the use of ultraviolet waves?
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