Quantum physics (blackbody radiation)

Thread starter HaZe-
Start date Aug 25, 2019
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Blackbody radiation Physics Quantum Quantum physics Radiation

In summary, blackbody radiation is the electromagnetic radiation emitted by an object that absorbs all incident electromagnetic radiation, and it plays a crucial role in understanding thermal radiation and the behavior of matter at a microscopic level in quantum physics. Planck's law explains blackbody radiation by describing the distribution of energy emitted by a blackbody at different wavelengths and showing that the energy is not continuous but rather in discrete packets called photons. The spectral distribution of blackbody radiation is dependent on the temperature of the object, and this relationship is described by Wien's displacement law. Furthermore, the concept of quantum energy levels is closely related to blackbody radiation, as the energy of photons emitted is directly proportional to the temperature of the object. Finally, blackbody radiation experiments support the

Aug 25, 2019

HaZe-

Homework Statement: How to prove the solution to question number 2 equation?

Relevant Equations: Prove it to be like that.. number 2

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Aug 25, 2019

Charles Link

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See https://www.physicsforums.com/threa...n-plancks-law-derivation.961396/#post-6097855 and the "links" in post 2 of this thread, particularly https://www.physicsforums.com/threa...-density-of-a-black-body.956343/#post-6063569
And please complete the homework template in the future and don't delete it. :welcome:

1. What is blackbody radiation?

Blackbody radiation is the electromagnetic radiation emitted by a perfect blackbody, which is an object that absorbs all radiation that falls on it. It is a fundamental concept in quantum physics and is related to the temperature of an object.

2. How does blackbody radiation relate to quantum physics?

Blackbody radiation is a phenomenon that can only be explained by quantum physics. It helped to confirm the existence of discrete energy levels in atoms, which is a key principle in quantum theory.

3. What is the Planck's law of blackbody radiation?

Planck's law of blackbody radiation states that the amount of radiation emitted by a blackbody at a certain wavelength is proportional to the temperature of the object and inversely proportional to the wavelength. It is a crucial equation in understanding the behavior of blackbody radiation.

4. How is blackbody radiation measured?

Blackbody radiation can be measured using a device called a spectrophotometer, which measures the intensity of radiation at different wavelengths. The data collected can then be used to calculate the temperature of the object emitting the radiation.

5. What are the applications of blackbody radiation?

Blackbody radiation has various applications in different fields, such as astronomy, where it helps to determine the temperature of stars and other celestial bodies. It is also used in thermal imaging technology and plays a crucial role in the development of quantum technologies.