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5 Cards in this Set
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Describe Electromagnetic wave? Travel at the speed of light what does that mean? |
The electromagnetic wave have electrics wave and a magnetic wave but they travel perpendicular to each other. If electromagnetic travel at the same speed of light hence light must be a electromagnetic wave. |
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In electromagnetic field which one is the smaller force? |
Then magnetic filed is the weaker one |
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Why if a electromagnetic wave have high frequency it must have a small wavelength? |
Because wave speed is equal to c=wavelength x frequency and c is a constant. |
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Describe the Boltzmann constant? |
First you need to know PV/T=constant but that constant depend on the amount of atom time the Boltzmann constant |
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What is a black body? |
A black body is a substance which absorb energy and don't reflect it. |