Modern Physics, 2/e
2nd Edition
ISBN: 9789332570962
Author: Randy Harris
Publisher: PEARSON
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Question
Chapter 3, Problem 1CQ
To determine
To Explain: The way, the two objects at unequal temperatures can be enabled to reach the same temperature.
The way, the
Expert Solution & Answer
Explanation of Solution
Introduction:
Thermal equilibrium is a state of equilibrium in which the temperature of both the objects becomes the same and there is no further transfer of heat.
In order to make the temperatures of both the objects the same, one has to bring them in contact. Once they are in contact, the heat starts to flow from a higher temperature object to a lower temperature object. The process of
The above idea holds true for electromagnetic radiation enclosed in a cavity. The electromagnetic radiation radiates heat which is absorbed by the cavity. This radiation of heat occurs until thermal equilibrium is achieved. At thermal equilibrium, both the radiation inside the cavity and the cavity walls have the same temperature.
Conclusion:
Thus, the temperature of electromagnetic radiation enclosed in a cavity has the same temperature as that of the cavity walls due to thermal equilibrium.
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Students have asked these similar questions
Consider the following statements about electromagnetic radiation and decide whether they are true or false. If they are false, correct them.
(a) The total intensity of radiation emitted from a black body at absolute temperature T is directly proportional to the temperature.
(b) As the temperature of a black body increases, the wavelength at which the maximum intensity is found decreases.
(c) Photons of radio-frequency radiation are higher in energy than photons of ultraviolet radiation.
(d) Photons of ultraviolet radiation have less energy than photons of infrared radiation.
(e) The kinetic energy of an electron ejected from a metal surface when the metal is irradiated with ultraviolet radiation is independent of the frequency of the radiation.
(f) The energy of a photon is inversely proportional to the wavelength of the radiation.
The Sun is approximately an ideal blackbody radiator with a surface temperature of 5800 K. (a) Find the wavelength at which its spectral radiancy is maximum and (b) identify the type of electromagnetic wave corresponding to that wavelength. (c) As we shall discuss in Chapter 44, the universe is approximately an ideal blackbody radiator with radiation emitted when atoms first formed.Today the spectral radiancy of that radiation peaks at a wavelength of 1.06 mm (in the microwave region).What is the corresponding temperature of the universe?
(S.I. units). Assuming to be a black body emitting radiation with maximum intensity at 0.5 µ. Calculate the temperature of the surface of the sun and the heat lux at its surface.
Chapter 3 Solutions
Modern Physics, 2/e
Ch. 3 - Prob. 1CQCh. 3 - Prob. 2CQCh. 3 - Prob. 3CQCh. 3 - Prob. 4CQCh. 3 - Prob. 5CQCh. 3 - Prob. 6CQCh. 3 - Prob. 7CQCh. 3 - A ball rebounds elastically from the floor. What...Ch. 3 - Prob. 9CQCh. 3 - Prob. 10CQ
Ch. 3 - Prob. 11ECh. 3 - Prob. 12ECh. 3 - Prob. 13ECh. 3 - Prob. 14ECh. 3 - Prob. 15ECh. 3 - Prob. 16ECh. 3 - Prob. 17ECh. 3 - What is the stopping potential when 250 nm...Ch. 3 - Prob. 19ECh. 3 - Prob. 20ECh. 3 - Prob. 21ECh. 3 - Prob. 22ECh. 3 - Prob. 23ECh. 3 - Prob. 24ECh. 3 - Prob. 25ECh. 3 - Prob. 26ECh. 3 - Prob. 27ECh. 3 - Prob. 28ECh. 3 - Prob. 29ECh. 3 - Prob. 30ECh. 3 - Prob. 31ECh. 3 - Prob. 32ECh. 3 - Prob. 33ECh. 3 - Prob. 34ECh. 3 - Prob. 35ECh. 3 - Prob. 36ECh. 3 - Verify that the Chapter 2 formula KE=mc2 applies...Ch. 3 - Prob. 38ECh. 3 - Prob. 39ECh. 3 - Prob. 40ECh. 3 - Prob. 41ECh. 3 - Prob. 42ECh. 3 - Prob. 43ECh. 3 - Prob. 44ECh. 3 - Prob. 45ECh. 3 - Prob. 46ECh. 3 - Prob. 47CECh. 3 - Prob. 49CECh. 3 - Prob. 50CECh. 3 - Prob. 51CECh. 3 - Prob. 52CECh. 3 - Prob. 53CECh. 3 - Prob. 54CECh. 3 - Prob. 55CE
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