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Thermodynamics — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsThermodynamics1 Mark
Question
Three stars A, B, C appear as green, red and blue respectively. Which star has minimum temperature?
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Answer

As $\text{T}\propto\frac{1}{\lambda_\text{m}}$ and $\lambda_\text{m}$ for red colour is maximum, therefore temperature T is minimum for star B emitting red colour.

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