Question

The cosmic background radiation is blackbody radiation from a source at a temperature of $2.73 \mathrm{K}$ (a) Use Wien's law to determine the wavelength at which this radiation has its maximum intensity. (b) In what part of the electromagnetic spectrum is the peak of the distribution?

          The cosmic background radiation is blackbody radiation from a source at a temperature of $2.73 \mathrm{K}$
(a) Use Wien's law to determine the wavelength at which this radiation has its maximum intensity. (b) In what part of the electromagnetic spectrum is the peak of the distribution?

Added by Magdalena B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Prabhu Ramji

12/15/2021

Step 1

Given: Temperature, T = 2.73 K Wien's constant, b = 2.898 x 10^-3 m*K Use the formula for Wien's displacement law: λ_max = b / T Substitute the values: λ_max = 2.898 x 10^-3 / 2.73 λ_max = 1.06 x 10^-3 m Therefore, the wavelength at which the cosmic background Show more…

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The cosmic background radiation is blackbody radiation from a source at a temperature of $2.73 \mathrm{K}$ (a) Use Wien's law to determine the wavelength at which this radiation has its maximum intensity. (b) In what part of the electromagnetic spectrum is the peak of the distribution?