Suppose a star with radius 861 108 m has a peak wavelength


Suppose a star with radius 8.61 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation.

(a) Find the energy of a photon with this wavelength.

J/photon

(b) What is the surface temperature of the star?

K

(c) At what rate is energy emitted from the star in the form of radiation? Assume the star is a blackbody (e = 1).

W

(d) Using the answer to part (a), estimate the rate at which photons leave the surface of the star.

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Physics: Suppose a star with radius 861 108 m has a peak wavelength
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