Which of the following statements is wrong?

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(B) According to Kirchhoff's law of radiation,good absorbers of radiation are also good emitters (radiators) of radiation.Rough and black surfaces are

Vedclass · Accepted Answer

Highly polished mirror-like surfaces are very good radiators.

Vedclass · Answer

(B) According to Kirchhoff's law of radiation,good absorbers of radiation are also good emitters (radiators) of radiation.Rough and black surfaces are good absorbers,and therefore,they are also good radiators.Highly polished,mirror-like surfaces are excellent reflectors of radiation,which means they are poor absorbers and consequently poor radiators.Therefore,the statement that highly polished mirror-like surfaces are very good radiators is incorrect.

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