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Q. What are emissive and absorption spectra?
Emission spectrum:
When the light emitted straight from a source is examined with a spectrometer the emission spectrum is obtained. Each source has its own characteristic emission spectrum.
Absorption spectrum:
When the light released from a source is made to pass through an absorbing material and then examined with a spectrometer absorption spectrum is obtained.
If 10 9 electrons move out of a given body to another body every second, how much time is required to get a total charge of 1C of the other body? ------------------------------
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