Electromagnetic radiation is a form of energy that travels through space and matter. There are many types of radiation, all of which are identical except for their wavelengths and energy. Radio waves, for example , have long wavelengths and low energy, while X-rays have another wave lengths and higher energy.Thursday 22 September 2011
ELECTROMAGNETIC RADIATION
Electromagnetic radiation is a form of energy that travels through space and matter. There are many types of radiation, all of which are identical except for their wavelengths and energy. Radio waves, for example , have long wavelengths and low energy, while X-rays have another wave lengths and higher energy.
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