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zahid sharief Grade: 11

what is absorption frequency

7 years ago

Answers : (1)

suryakanth AskiitiansExpert-IITB
105 Points

Dear zahid,

Absorption spectrum   

Every shell (electron shells and transitory shells) of an atom has its own unique natural frequency (or resonant frequency). When a cooled gas is placed in the path of continues spectrum of light, dark absorption lines will be appeared in the resulting spectrum. This absorption lines are caused by the absorption of that particular frequencies by the gas atoms.

When the natural frequencies of electron shells and primary transitory shells of an atom are same as the frequencies of some of the incoming photons, then that photons excite their corresponding shells (electron shells and transitory shells) and in the resulting spectrum that photons will be absent.


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7 years ago
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