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MHT CET 2021 (20 Sep, Shift 2) · Thermal Radiation: Black Body, Stefan & Wien

Thermal Radiation: Black Body, Stefan & Wien question from MHT CET 2021 (20 Sep, Shift 2)

Q92MHT CET 2021 · 20 SEP · SHIFT 2Easy

Thermal Radiation: Black Body, Stefan & Wien

Two stars 'P' and 'Q' emit yellow and blue light respectively. The relation between their temperatures $(T_{P}$ and $T_{Q})$ is

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Answer: (d)

Wien's law: $T \propto \dfrac{1}{\lambda_m}$ .
Yellow light has a longer wavelength than blue, so $\lambda_P > \lambda_Q$ .
Hence $T_P < T_Q$ , so the answer is (d).

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