Question

Find out the surface temperature & total power emitted from the surface of a star, if the radiation emitted by the star has maximum Intensity at wavelength 440 nm.

Answer 1

Answer:

λmaxT=b

∴T=λmaxb=289.8nm2898μmK

289.8×10−9m2898×10−6mK=104K

According to Stefan Boltzmann law,

Radiation intensity, R=σT4

R=(5.67×10−8Wm−2K−4)(104K)4

=5.67×108Wm−2

Explanation:

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