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Statistical Mechanics}Wien Law

Recall Wien's Law, \lambda T = 2.9 E-3. It relates the temperature with the wavelength at maximal intensity. The wavelength at the maximal intensity is approximately 2\mu m. Plugging this in, one finds that T = 2.9E-3/2E-6 \approx 1500K, as in choice (D).

See below for user comments and alternate solutions! See below for user comments and alternate solutions!
Alternate Solutions
UNKNOWNUMBER
2018-10-19 02:26:37
Just approximate the constant as 3. Knowing Wien\'s law, you get 3/2=1.5. The answer has to be VERY close to that number times some power of 10, so you can quickly zone in on (D).Alternate Solution - Unverified
Ning Bao
2008-02-01 07:16:07
Dimensional analysis: you get m*K and K and m and are asked to solve for K.Alternate Solution - Unverified
Comments
UNKNOWNUMBER
2018-10-19 02:26:37
Just approximate the constant as 3. Knowing Wien\'s law, you get 3/2=1.5. The answer has to be VERY close to that number times some power of 10, so you can quickly zone in on (D).Alternate Solution - Unverified
Ning Bao
2008-02-01 07:16:07
Dimensional analysis: you get m*K and K and m and are asked to solve for K.Alternate Solution - Unverified

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