Civil Engineering - UPSC Civil Service Exam Questions - Discussion

16. 

If the mean temperature of Sun's surface 6000 K and λm of its radiation is 0.5 what is the mean temperature of earth surface for which λm is 10.0 μm, according to Wien's Displacement Law in Remote Seniror Concept ?

[A]. 25 °C
[B]. 28 °C
[C]. 27 °C
[D]. 30 °C

Answer: Option C

Explanation:

No answer description available for this question.

Mona said: (Nov 23, 2018)  
Peak wavelength * temperature = constant.

Temperature at earth = .5 * 6000/10 kelvin = 300 k =27° celcius.

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