The temperature of the surface of Pluto is about T(K) = 40 K (TC = -230 °C). %3D According to Wien's law, the maximum wavelength of light emitted by Pluto in the IR or infrared region of the spectrum, is Amax = 2900 K•µm/T(K) = 72.5 um. %3D What is the frequency of this radiation? Af =c c = 3x10® m/s %3D

The temperature of the surface of Pluto is about T(K) = 40 K (TC = -230 °C). %3D According to Wien's law, the maximum wavelength of light emitted by Pluto in the IR or infrared region of the spectrum, is Amax = 2900 K•µm/T(K) = 72.5 um. %3D What is the frequency of this radiation? Af =c c = 3x10® m/s %3D

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.

Question

100%

The temperature of the surface of Pluto is about T(K) = 40 K (TC = -230 °C).
According to Wien's law, the maximum wavelength of light emitted by Pluto
in the IR or infrared region of the spectrum, is Amax = 2900 K•µm/T(K) = 72.5 um.
%3D
What is the frequency of this radiation?
Af =c
c = 3x108 m/s
O 1.6 x 1019 Hz
O 4.1 x 1012 Hz
3.2 x 1013 Hz
39 x 1013 Hz
99.1 MHz

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