Question: The Sun s energy production near its center is initially in
The Sun’s energy production (near its center) is initially in the form of X-rays and gamma rays. By the time it reaches the surface, it is mostly in the visible range. Use Compton scattering to explain how this happens.
Answer to relevant QuestionsThe walls of a blackbody cavity are at a temperature of 20oC. What is the wavelength of the radiation of maxi-mum intensity? The work function of a surface is 5.0 x 10-19 J. If light of wavelength of 300 nm is incident on the surface, what is the maximum kinetic energy of the photoelectrons ejected from the surface? Figure 27.21 shows a graph of stopping potential versus frequency for a photoelectric material. Determine (a) Planck’s constant and (b) The work function of the material from the data contained in the graph. When the wavelength shift for Compton scattering from a free electron is a maximum, what is the scattering angle? Find the energy of a hydrogen atom whose electron is in the (a) n = 2 state and (b) n = 3 state.
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