At what wavelength does the blackbody radiation from a microwave source has its maximum intensity? The temperature of the microwave source is 2.73 K.
A)1.06 m
B)7.92 m
C)1.06 mm
D)7.92 mm

Question

Quizplus · Accepted Answer

The wavelength at which the blackbody radiation from a microwave source has its maximum intensity can be calculated using Wien's displacement law:

λ(max) = b/T

where b is the Wien's displacement constant (2.898 x 10^-3 m.K) and T is the temperature of the source in Kelvin.

Substituting the given values, we get:

λ(max) = 2.898 x 10^-3 m.K / 2.73 K
λ(max) = 1.06 mm

Therefore, the correct choice is C) 1.06 mm.

At What Wavelength Does the Blackbody Radiation from a Microwave