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Sayan Hati posted an Question
September 20, 2021 • 15:31 pm 30 points
  • IIT JAM
  • Physics (PH)

Quantum mechanics

taking spectral energy density as function of frequency and wavelength i m getting different answers like 8 and 32 respectively, can someone solve it by both methods

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    Anshum Sharma best-answer

    Option C is correct

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    answer given is d

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    stefan's law is for total energy radiated per unit time per unit volume , here they are asking for maximum value of spectral energy density

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    For the distribution of spectral density we use the Planck's Law But here they asked for Maximum value and it is derived by modifying Planck's law which is called stefan's-Boltazmann law, from where there is the relation between Spectral Energy and Temprature. That's why we use this formula.

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