Problem 7. Assume that a star can be approximated as a black body, using Stefan's Boltzmann Law 1. Show that the luminosity obeys L x R²T4 (0.5) 2. Calculate the wavelength at which the radiation from the Sun peaks. For the Sun: Mo = 2 × 10³3 gram, Lo = 3.9 x 1033 erg/sec and Ro = 7 x 10¹⁰ cm.
Problem 7. Assume that a star can be approximated as a black body, using Stefan's Boltzmann Law 1. Show that the luminosity obeys L x R²T4 (0.5) 2. Calculate the wavelength at which the radiation from the Sun peaks. For the Sun: Mo = 2 × 10³3 gram, Lo = 3.9 x 1033 erg/sec and Ro = 7 x 10¹⁰ cm.
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Transcribed Image Text:Problem 7. Assume that a star can be approximated as a black body, using Stefan's Boltzmann Law
1. Show that the luminosity obeys
L x R²T4
(0.5)
2. Calculate the wavelength at which the radiation from the Sun peaks. For the Sun: Mo = 2 × 1033 gram,
Lo = 3.9 x 1033 erg/sec and Ro = 7 × 10¹⁰ cm.
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