All Questions
Tagged with radiation temperature
37
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Why does a heated body emit a continuous spectrum of waves, while a burning body emits one color?
Why does a heated body emit a continuous spectrum of waves (as I understand it, that's why they burn red/white/blue), and a burning body is one color?
as I understood it, for example, the green flame ...
- 13
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49
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Radiation power emmited by a material with two different temperatures [closed]
Let's consider a cylindrical sample of a solid material surrounded by air. From $0 \leq r \leq r_1$ the temperature of the material is $T_1$ and from $r_1 < r \leq R$, $T=T_0$ which is also the ...
- 33
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Heat transfer and Stefan-Boltzmann law and black body radiation [closed]
can there exist a black body (theoretically) which has a cavity in it I don't mean Fery's black body I am referring to a black body which is made of a MATERIAL which has the property to emit and ...
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Can a body be in thermal equilibrium at a different temperature from surroundings?
As per my knowledge bodies attain constant temperature (thermal equilibrium with surroundings) when they absorb and emit energy at equal rates.
Let us say temperature of surroundings is T1.
We have a ...
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From where does the particle in liquid get energy to move always?
My question is that if there is an object,then without giving energy to an object it cannot move …so my question is that how do particles in fluids always move without giving them any additional ...
- 179
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Katabatic Wind: if the ground "radiates" it's heat during the night, why doesn't the air above it warm?
In this picture (from EasyPPL mock exam) and in a few other sources (e.g. https://www.britannica.com/science/katabatic-wind) it is stated that at night, the ground radiates heat and the air passing ...
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How long does it take, and how much heat, to raise the temperature of air in a box?
I am seeking to crudely model a house with a window as a perfectly insulated box with a hole (which only allows radiative heat).
My question is to find how the temperature of air in the box changes ...
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141
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Equipartition theorem for radiation in black body?
In Planck distribution of energy density for black body he solved the uv catastrophe by association of descrete energy to each mode, and by the equipartition theoreme from statistical mechanics we ...
-3
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2
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79
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How parker solar probe survives death rays?
What is the temperature due to death rays alone excluding plasma.
Clearly it's now possible for any material to survive that.
It's 20x closer than earth so radiation is 400x.
150million km / 7 million ...
- 39
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It seems a stove top coil / burner element defies black body radiation
Most glow charts say that incipient red Heat is 1000 Fahrenheit or 540 Celsius , and bright orange is just shy of 2,000 Fahrenheit or 1093 celsius . But my fluke thermocouple rated at over 2,000 ...
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Can we feel heat in outer space? [duplicate]
Is there air outside of earth atmosphere? If not, could we feel heat coming from sun?
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How warm are radioactive metals?
I read that radium is warm to the touch -- is that because of actual heat or is that because, for example, the radiation it emits creates the sensation of warmth? How high of a temperature can a ...
- 2,238
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What is black-body equivalent of UV part of solar spectrum?
If all non-UV light was filtered from sunlight, does this approximate a different type of black body radiation? Regular sunlight has a black-body temperature of 5777 K.
This is in relation to the ...
- 23
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Is there an instrument that measures temperature (dynamic reading) at high irradiation doses?
I would like to measure the temperature in industrial gamma irradiation bunker. I know thermocouples are often used, but they only give max temperature reading, and I would like to have a dynamic ...
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How does the temperature of matter increase when it absorbs light?
When matter absorbs light waves does it cause the matter to increase in temperature? For example, microwaves can heat matter up, so can light waves do the same?
