- #1
ramuramu
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Homework Statement
By Wien's we can determine that the max wavelength radiated by the sun is around 500 nm.
How does this compare to the apparent color of the sun? Attempt to explain this discrepancy.
Homework Equations
lambda_max*T=2.9x10^-3
The Attempt at a Solution
I said that the sun appears yellow to us (600-630nm) even though lambda max is around
500nm (blue-green). This is using 5.79x10^3 K as a surface temp. At first I thought the discrepancy was due to scattering of photons off molecules/electrons but that would yield a higher apparent frequency, not a lower one. Then, I thought it was simply that the sun appears white, we observe all wavelengths together, not just the max one.
Does this make sense?
Although, if you had a red-hot poker you only observe the lamdba max mainly->red. This makes me think there is something more to the answer. We have been studying blackbody radiation in a sophomore modern physics class.
THANK YOU!