Questions
The black body spectrum of an object O1 is such that its radiant intensity (i.e. intensity per unit wavelength interval) is maximum at a wavelength of 200 nm. Another object O2 has the maximum radiant intensity at 600nm. The ratio of power emitted per unit area by source O1 to that of source O2 is
detailed solution
Correct option is D
From Wien's displacement law,λmT=b⇒λm=bT …(i)From Stefan's law, E∝T4⇒ E1E2=T1T24=λm2λm14 [By Eq. (i)]⇒ E1E2=6002004⇒E1:E2=81:1Talk to our academic expert!
Similar Questions
For a black body at temperature 727°C, its radiating power is 60W and temperature of surrounding is 227° C. If temperature of black body is changed to 1227°C, then its
radiating power will be :
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