You can use Wein's law so you can do:What is the peak wavelength of a blackbody at temperature 310 K?
Er, either your units out constant are incorrect I think. No way the wavelength is that low at 310K.You can use Wein's law so you can do:What is the peak wavelength of a blackbody at temperature 310 K?
0.29/310K = 0.000935483871 nm. That's in the gamma ray range I think.
If that was in centimeters, it would be correct. Remember, Wien's displacement constant is 2.8977729 × 10^-3 m K. That divided by 310 K gives 9.34765452e-6 m, which in nm is 9347.6 nm.Er, either your units out constant are incorrect I think. No way the wavelength is that low at 310K.You can use Wein's law so you can do:What is the peak wavelength of a blackbody at temperature 310 K?
0.29/310K = 0.000935483871 nm. That's in the gamma ray range I think.
It would be in the infrared (LWIR). I'll ask the next question.Ah, well I never knew the constant's units. Thanks. So to confirm- This would be in the infared range.
Do I get next question? If so, I'll just let someone else do it (If that is allowed. I can't think of one rn).
Alright. I have an idea, but I'm confused on how we would use the wavelength information.It would be in the infrared (LWIR). I'll ask the next question.Ah, well I never knew the constant's units. Thanks. So to confirm- This would be in the infared range.
Do I get next question? If so, I'll just let someone else do it (If that is allowed. I can't think of one rn).
What temperature must a blackbody with 5.54* 10^-28 W × sr-1 × m-3 spectral radiance and 550 nm wavelength be at?
I suspect Xuax meant to say W x sr-1 x m-2 which is the correct unit for spectral radiance. Somehow you would have to get rid of the steradian (maybe multiply by the number of steradians per sphere?) and then use the flux form of Stefan-Boltzmann's Law: . As far as I know, the wavelength is unneeded for the problem (though I guess you can alternatively solve it using Wien's Law?)Alright. I have an idea, but I'm confused on how we would use the wavelength information.It would be in the infrared (LWIR). I'll ask the next question.Ah, well I never knew the constant's units. Thanks. So to confirm- This would be in the infared range.
Do I get next question? If so, I'll just let someone else do it (If that is allowed. I can't think of one rn).
What temperature must a blackbody with 5.54* 10^-28 W × sr-1 × m-3 spectral radiance and 550 nm wavelength be at?
Stefan-Boltzmann's law states that L = A*alpha*T^4, where L is the luminosity, A is the surface area, alpha is the constant 5.670*10^-5 and then T is what we are looking for. We only lack the surface area information here.
How would we figure that out? Am I on the right track?
The question was supposed to be about the Planck function. When the function is expressed as Bλ(λ,T), the unit is W x sr-1 x m-3. That is a unit of spectral radiance. If you know the spectral radiance and the wavelength, you can find the temperature.I suspect Xuax meant to say W x sr-1 x m-2 which is the correct unit for spectral radiance. Somehow you would have to get rid of the steradian (maybe multiply by the number of steradians per sphere?) and then use the flux form of Stefan-Boltzmann's Law: . As far as I know, the wavelength is unneeded for the problem (though I guess you can alternatively solve it using Wien's Law?)Alright. I have an idea, but I'm confused on how we would use the wavelength information.It would be in the infrared (LWIR). I'll ask the next question.
What temperature must a blackbody with 5.54* 10^-28 W × sr-1 × m-3 spectral radiance and 550 nm wavelength be at?
Stefan-Boltzmann's law states that L = A*alpha*T^4, where L is the luminosity, A is the surface area, alpha is the constant 5.670*10^-5 and then T is what we are looking for. We only lack the surface area information here.
How would we figure that out? Am I on the right track?
Passive: Detects natural energy reflected/Emitted from an observed sceneThis is a great question to start with because it will be on literally every Remote Sensing test you take this year. Know the answer to this question.Short Event Description: Participants will use remote sensing imagery, data and computational process skills to complete tasks related to climate change processes in the Earth system.
What is the difference between active and passive sensing?
Is this what i would do?Use the form of Planck´s function tλ(λ,L) to find the answer.
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