☰
Thermal Properties of Matter
Assertion: A hollow metallic closed container with small opening maintained at a high temperature can act as a source of black body radiation.
Reason: All metals act as black body radiator.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
C.
If assertion is true but reason is false.
A black body is an idealized object which absorbs and emits all frequencies. Blackbody radiation as a function of frequency for a fixed temperature.
The hollow metallic closed container maintained at a uniform temperature can act as a source of the black body. It is also well known that all metals cannot ac as a black body because if we take highly metallic polished surface. It will not behave as a perfect black body.
Sponsor Area
If Cp and Cv denote the specific heats of nitrogen per unit mass at constant pressure and constant volume respectively, then
A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
Sponsor Area
Sponsor Area