Question:
The surface temperature of the stars is determined using
The surface temperature of the stars is determined using
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Blue stars are hotter than red stars (Wien's Law).
Updated On: Apr 10, 2026
- Planck's law
- Wien's displacement law
- Rayleigh-Jeans law
- Kirchhoff's law
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The Correct Option is B
Solution and Explanation
Step 1: Law Principle
Wien's displacement law states that the wavelength of maximum emission ($\lambda_m$) is inversely proportional to the absolute temperature ($T$).
Step 2: Application
By measuring the color (wavelength) of light from a star, scientists can calculate its surface temperature.
Step 3: Formula
$\lambda_m T = b$, where $b$ is Wien's constant.
Final Answer: (b)
Wien's displacement law states that the wavelength of maximum emission ($\lambda_m$) is inversely proportional to the absolute temperature ($T$).
Step 2: Application
By measuring the color (wavelength) of light from a star, scientists can calculate its surface temperature.
Step 3: Formula
$\lambda_m T = b$, where $b$ is Wien's constant.
Final Answer: (b)
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