if an object absorbs light then why it will transmit it in dark and where it gone?

Asked by haritsourabhharit | 16th Oct, 2010, 09:17: AM

Expert Answer:

Dear Student
 
All bodies absorb heat or thermal radiations from the environment & simultaneously emit them.
 
A body in the state of losing heat or cooling down will emit more than absorb.
A body in the state of gaining heat or heating up will emit less & absorb more.
 
So while heating up a body, it will keep on absorbing more & more heat radiations.
While the same body is cooled it emits/reradiates the same heat radiations back to the environment.
 
For more detailed overview of therma radiations, pls go thru the detailed content given in the web page given below.
 
 
http://en.wikipedia.org/wiki/Thermal_radiation
 
We hope that clarifies your query.
 
Regards
Team
TopperLearning

Answered by  | 18th Oct, 2010, 12:01: PM

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