Akhilesh posted an Question
February 17, 2022 • 16:36 pm 30 points
  • IIT JAM
  • Physics (PH)

Consider an experiment where a blackbody (blackbody radiation) is studied. the radiators are heated up by absorbing incident light and cool down when they emit

Consider an experiment where a Blackbody (Blackbody radiation) is studied. The radiators are heated up by absorbing incident light and cool down when they emit light, reaching a specific temperature at equilibrium. Assume for all parts that the equilibrium temperature of the Blackbody radiator is 8000K. a) How much energy is emitted per second by the blackbody (i.e., what is the power it emits)? What is the nature of emitted energy (hint: the answer is more precise than just saying "heat")? b) What is the intensity distribution at a frequency of 230x1012 Hz? Calculate this both for Rayleigh-Jeans and Planck form of the distribution. c) Is a larger fraction of the energy emitted at a frequency of 230x10t2 Hz for the Rayleigh- Jeans or Planck distribution? Briefly explain why.

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