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115.
Atomic Excitation Excitation explained with examples. |
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116.
Atomic Spectra The spectroscopes and emission and absorption spectra explained |
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117.
Emission of Light Incandescence, fluorescence, and phosphorescence explained |
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118. Lamps Incandescent lamps, fluorescent lamps, CFLs and LEDs explained |
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119.
Laser Light Explanation of the helium-neon laser. |