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This question has a real subtlety in it.
The simplest answer is given by Wein's Law, sometimes called Wein's Displacement
Law:
The peak of the spectrum for any "blackbody" (this works approximately for
stars and people, basically any opaque object).
Wavelength of peak emission = (Stefan's constant, which you can look up) x 0.0029meter / temperature in Kelvins.
According to this formula, the peak is in the green part of the spectrum.
But a lot of light is given off across the visual part of the spectrum so it looks
whitish to me.
Here's the subtlety that few people realize. This all works only when you plot
the spectrum as the emission per unit wavelength. You can also plot the emission
per unit frequency. Then the peak is at a different location!
What else can I help you with?
Will people be affected by electromagnetic radiation?
that depends on the wavelength of the radiation. the shorter the wavelength the more damage it can do.
Which has the longest wavelength 1ultraviolet radiation 2gamma radiation 3 visible radiation 4 infrared radiation?
The sequence of the listing in the question is correct. From longest to shortest wavelength, these four categories of EM radiation do in fact list in the order: 1). infrared 2). visible 3). ultraviolet 4). X-rays
If the inner accretion disk around a black hole has a temperature of 1000000 K at what wavelength will it radiate the most energy?
For a thermal radiation source, the peak of the blackbody radiation curve is at a photon energy 2.8 times the temperature in electron-volts. The temperature in electron-volts is 1/11,600 times the temperature in Kelvin. Use E = hv to convert from the photon energy (E) to photon frequency, using Plank's constant h. Use v = c/(lambda) to convert from the photon frequency to the wavelength. The result: these hot plasmas radiate X-rays, and the peak wavelength is about 50 Angstroms, i.e. 5 nm.
Why does planck curve decline after reaching the peak wavelength?
The Planck curve declines after reaching the peak wavelength because the intensity of radiation decreases as the wavelength increases. This is due to a decrease in the number of photons emitted at longer wavelengths.
What is the smallest infrared radiation wavelength?
the smallest infrared radiation wavelength is ranging from 0.75-1.3micrometre
What is important about the peak wavelength of a thermal radiation spectrum?
The peak wavelength, is connected to the temperature of the objects. we have short peak wavelength when the temperature is high.
What is the peak wavelength calculated using Wien's displacement law?
The peak wavelength calculated using Wien's displacement law is the wavelength at which the intensity of radiation emitted by a black body is highest. This peak wavelength is inversely proportional to the temperature of the black body, with higher temperatures resulting in shorter peak wavelengths.
Do hotter objects emit photons with a shorter wavelength?
Yes, hotter objects emit photons with a shorter wavelength. This is known as Wien's displacement law, which states that the peak wavelength of radiation emitted by an object is inversely proportional to its temperature. As the temperature of an object increases, the peak wavelength of the emitted radiation shifts to shorter wavelengths.
What happened to the wavelength of infrared waves as the objects get hotter?
As objects get hotter, the wavelength of infrared waves they emit decreases. This is known as Wien's Displacement Law, which states that the peak wavelength of thermal radiation emitted by an object is inversely proportional to its temperature. So, as the temperature of an object increases, the peak wavelength of the emitted radiation shifts to shorter wavelengths in the infrared spectrum.
What is the frequency of heat radiation?
Heat radiation, also known as thermal radiation, is emitted at various frequencies depending on the temperature of the object. As temperature increases, the frequency of the radiation also increases. The peak frequency of heat radiation is given by Wien's displacement law: f_peak = c / λ_peak, where f_peak is the peak frequency, c is the speed of light, and λ_peak is the peak wavelength.
What wavelength of radiation is reradiated by the Earth upward?
The Earth reradiates longwave infrared radiation, with a peak wavelength around 10 micrometers. This is due to the Earth's relatively cool temperature compared to the Sun, causing it to emit radiation in the infrared part of the electromagnetic spectrum.
What is the wavelength of maximum intensity in sunlight?
The wavelength of maximum intensity in sunlight is around 500 nm, which is in the green portion of the visible spectrum. This wavelength corresponds to the peak of the solar radiation spectrum and is where the sun emits the most energy.
What is the peak to peak distance of a wave?
The wavelength.
What is described by the wavelength of wave?
The distance from on peak to the next peak
Will people be affected by electromagnetic radiation?
that depends on the wavelength of the radiation. the shorter the wavelength the more damage it can do.
What is the maximum wavelength at which electromagnetic radiation can occur?
The maximum wavelength at which electromagnetic radiation can occur is infinite.
What are the four parts of a wavelength?
The four parts of a wavelength are peak, trough, amplitude, and wavelength. The peak is the highest point of a wave, while the trough is the lowest point. Amplitude refers to the height of the wave from the baseline, and wavelength is the distance between two consecutive peaks or troughs.
