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MHT CET 2026 (15 May, Shift 1) · Thermal Radiation: Black Body, Stefan & Wien

Thermal Radiation: Black Body, Stefan & Wien question from MHT CET 2026 (15 May, Shift 1)

Q6MHT CET 2026 · 15 MAY · SHIFT 1Easy

Thermal Radiation: Black Body, Stefan & Wien

The temperature of a black body is increased by 50%50\% then the percentage increase of radiation is nearly

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Answer: (c)

  1. E∝T4E \propto T^4; T′=1.5TT' = 1.5T
  2. E′E=(1.5)4=5.06\dfrac{E'}{E} = (1.5)^4 = 5.06
  3. Increase =(5.06−1)×100≈406%≈400%= (5.06 - 1)\times100 \approx 406\% \approx 400\%
  4. So the answer is (c) 400%.
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