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Wien's displacement law: wavelength of maximum emission and temperature

This type of question, asked 5 times: 10 May 2023 S1, 22 Apr 2025 S2, 25 Apr 2025 S2, 17 Apr 2026 S2, 20 Apr 2026 S2. All 5 questions below, oldest first.

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  1. Question 1

    10 May 2023 S1

    17
    Ordinary bodies P and Q radiate maximum energy with wavelength difference 3 μm3\,\mu m. The absolute temperature of body P is four times that of Q. The wavelength at which body Q radiates maximum energy is

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  2. Question 2

    22 Apr 2025 S2

    43
    Black bodies A and B radiate maximum energy with wavelength difference 4μ m4\mu\text{ }m. The absolute temperature of body A is 3 times that of B . The wavelength at which body B radiates maximum energy is

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  3. Question 3

    25 Apr 2025 S2

    48
    A black body emits radiation of maximum intensity at wavelength ' λ\lambda ' at temperature T K . Its corresponding wavelength at temperature 1.5 T K will be

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  4. Question 4

    17 Apr 2026 S2

    112
    A black body emits radiation of maximum intensity of wavelength 'λ\lambda' at temperature 'T' K. Its corresponding wavelength at temperature (2.5T)(2.5T) K will be

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  5. Question 5

    20 Apr 2026 S2

    112
    Two stars A and B radiate maximum energy at wavelength 3.9×10−73.9 \times 10^{-7} m and 5.2×10−75.2 \times 10^{-7} m respectively. The ratio of the temperature of star A to that of star B will be

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