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NEET2010PhysicsThermal Properties of MatterActual

A black body has a wavelength of at temperature 2000 K . Its corresponding wavelength at temperature 3000 K will be

Options

  1. A2 3
  2. B3 2
  3. C4 9
  4. D9 4

Correct answer

A. 2 3

Step-by-step solution

According to Wien's displacement law, or _m T= constant or ₂ ₁ = T₁ T₂ ₂ = 2000 3000 = 2 3 or ₂= 2 3

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