Is energy of a hot body emitted continuously?
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Is energy of a hot body emitted continuously?
A small energy change results in the emission or absorption of low-frequency radiation, while a large energy change results in the emission or absorption of high-frequency radiation. A hot object would emit energy in a continuous fashion.
Why is energy discontinuous?
There is no middle ground. If an electron is excited to a new energy level, it jumps to that level instantaneously. Each packet of energy corresponds to a line in the atomic spectrum. There is nothing between each line, so the spectrum is discontinuous.
How is energy of a hot body emitted?
In these examples, heat is transferred by radiation. That is, the hot body emits electromagnetic waves that are absorbed by our skin: no medium is required for electromagnetic waves to propagate. Because more heat is radiated at higher temperatures, a temperature change is accompanied by a color change.
Why do hot things emit infrared?
As an object gets hotter, the peak of its thermal radiation shifts to higher frequencies. The sun is hot enough that most of its thermal radiation is emitted as visible light and near infrared waves. Humans glow mostly in the infrared portion of the electromagnetic spectrum.
What is the charge of a photon?
Photons have no charge, no resting mass, and travel at the speed of light. Photons are emitted by the action of charged particles, although they can be emitted by other methods including radioactive decay.
What causes emission spectra discontinuity?
If an electron is excited to a new energy level, it jumps to that level instantaneously. Hence, atomic emission spectra represent the electrons returning to lower energy levels. Each packet of energy corresponds to a line in the atomic spectrum. There is nothing between each line, so the spectrum is discontinuous.
Is energy of hot body emitted only in discrete units rather than continuously?
Instead, what Planck found by analyzing the spectra was that the energy of the hot body could only be lost in small discrete units. Planck showed that the amount of radiant energy absorbed or emitted by an object is directly proportional to the frequency of the radiation.
Why does heat produce photons?
When heat is transferred to an atom, it starts to vibrate more quickly. This vibration is a form of kinetic energy. Some of the kinetic energy is transferred to the electrons around the nucleus. When this happens, the electron releases the extra energy it had gained in the form of infrared light photons.
Is photon energy discrete?
Photons Are a “Bundle of Energy” A photon is a particle of light defined as a discrete bundle (or quantum) of electromagnetic (or light) energy. Photons are always in motion and, in a vacuum (a completely empty space), have a constant speed of light to all observers.
Why matter is not continuous?
it means that matter is made up of particles. matter is anything which occupies space and can be sensed by any of our sense. anything which occupies space is made of of atoms and molecules. so, therefore it is particulate not continuous.