Which of the following statements is wrong?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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.

Similar Questions

When the bulb is switched on,what happens to the level of alcohol on the $X$ side?

If the transmission power of a surface is $\frac{1}{9}$ and the reflective power is $\frac{1}{6}$,then what is its absorptive power?

For a perfectly black body,the coefficient of emission (emissivity) is:

''$A$ perfect black body is black in colour.'' Is this statement true or false?

Which of the following statements does not hold good for thermal radiation?

Vedclass Test Series

Exam Paper Generator

Online Exam Module