What Should the Detector Temperature Be for Measuring Black Body Radiation?

In summary, the conversation discusses the temperature of a detector inside a black body radiation cavity and its effect on measuring the radiation field in a specific frequency interval. The possible options for the temperature of the detector are T’>T, T’=T, T’<T, T=0K, or it is irrelevant to the measurement. The suggested solution is that T'=T to maintain equilibrium and avoid any interference with the measurement.
  • #1
bull0sees
3
0

Homework Statement


Suppose you are inside a black body radiation cavity which is at temperature T. Your job is to measure the radiation field in the frequency interval from 1014 to 89 x1014 Hz. You have a detector to do the job. What should the temperature of the detector (T’) be?
Explain your answer.
Possible options are T’>T, T’=T, T’<T, T=0K, or is the temperature of the detector is irrelevant to the measurement?



Homework Equations





The Attempt at a Solution

 
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  • #2


you post very interesting questions, however I am also no help at this question either.
 
  • #3


thank you
 
  • #4


Anybody have an answer for this? I have been wracking my brains all night but cannot come up with a solution :(
 
  • #5


shouldn't T'=T because if the temp of the detector was higher than in than in the cavity, it would radiate and effect the result, and same if it was colder, it would absorb radiation from the cavity to come up to equilibrium...
 
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FAQ: What Should the Detector Temperature Be for Measuring Black Body Radiation?

1. What is quantum black body radiation?

Quantum black body radiation refers to the electromagnetic radiation emitted by an object at a specific temperature, according to the principles of quantum mechanics. It is also known as thermal radiation.

2. What causes quantum black body radiation?

Quantum black body radiation is caused by the thermal energy of an object's molecules. As the temperature of the object increases, the molecules vibrate and release electromagnetic radiation.

3. How is quantum black body radiation related to Planck's law?

Planck's law explains the distribution of energy of electromagnetic radiation emitted by a black body at a given temperature. It is based on the principles of quantum mechanics and is used to describe the intensity and wavelength of quantum black body radiation.

4. What is the significance of quantum black body radiation?

Quantum black body radiation is important in understanding the behavior of matter at the atomic and subatomic level. It also has practical applications in fields such as astrophysics, thermodynamics, and telecommunications.

5. How is quantum black body radiation different from classical black body radiation?

Classical black body radiation is based on classical physics principles and does not accurately explain the behavior of matter at the atomic level. Quantum black body radiation, on the other hand, takes into account the principles of quantum mechanics and provides a more accurate description of the emission of electromagnetic radiation by a black body.

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