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Question

Fraunhoffer lines in solar spectrum can be cited as an example of

A
Stefan's law
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B
Kirchoff's law
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C
William's law
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D
Plank's law
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Solution

The correct option is C William's law
Fraunchofer lines, in astronomical spectroscopy any of the dark lines in the spectrum the sun or other star, caused by selective absorption of the sun's radiation at specific wavelengths by the various elements existing as gases in it atmosphere. The lines were first observed in 1802 by the English physicist william hyde Wollaston.
hence,
option (C) is correct answer.

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