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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.
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.
What is the correct name for the distance between two consecutive identical points on the curve of a sound wave?
The correct name for the distance between two consecutive identical points on the curve of a sound wave is the wavelength. It represents the spatial period of the wave and is typically denoted by the Greek letter lambda (λ). Wavelength is a key parameter in understanding sound wave properties, including frequency and speed.
Why do you use the wavelength with the maximum absorbance in spectroscopy?
Short answer:Using the maximum wavelength gives us the best results. This is because at the peak absorbance, the absobance strength of light will be at the highest and rate of change in absorbance with wavelength will be the smallest. Measurements made at the peak absorbance will have the smallest error.Long answer: It really depends on what is the largest source of error. Taking the readings at the peak maximum is best at low absorbance, because it gives the best signal-to-noise ratio, which improves the precision of measurement. If the dominant source of noise is photon noise, the precision of absorbance measurement is theoretically best when the absorbance is near 1.0. So if the peak absorbance is below 1.0, then using the peak wavelength is best, but if the peak absorbance is well above 1.0, you might be better off using another wavelength where the absorbance is closer to 1. Another issue is calibration curve non-linearity, which can result in curve-fitting errors. The non-linearity caused by polychromatic light is minimized if you take readings at either a peak maximum or a minimum, because the absorbance change with wavelength is the smallest at those wavelengths. On the other hand, using the maximum increases the calibration curve non-linearity caused by stray light. Very high absorbances cause two problems: the precision of measurement is poor because the transmitted intensity is so low, and the calibration curve linearity is poor due to stray light. The effect of stray light can be reduced by taking the readings at awavelength where the absorbance is lower or by using a non-linear calibration curve fitting technique. Finally, if spectral interferences are a problem, the best measurement wavelength may be the one that minimizes the relative contribution of spectral interferences (which may or may not be the peak maximum). In any case, don't forget: whatever wavelength you use, you have to use the exact same wavelength for all the standards and samples. See http://terpconnect.umd.edu/~toh/models/BeersLaw.htmlTom O'HaverProfessor Emeritus
What is the formula on how to find starch in water?
To find the concentration of starch in water, you can use a spectrophotometric method by measuring the absorbance of the solution at a specific wavelength. Prepare a standard curve using known concentrations of starch solutions to correlate absorbance with concentration. Then, measure the absorbance of your sample and use the standard curve to determine the starch concentration.
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.
The blackbody curve depends on what single property?
temperature
Why is it that the sun appears yellow?
That is about where the peak of its blackbody radiation curve is, as determined by the photosphere temperature.
In terms of its blackbody curve describe what happens as a red-hot glowing coal cools off?
As the red-hot glowing coal cools off, its temperature decreases, causing a shift in its blackbody curve towards longer wavelengths. This shift leads to a decrease in the intensity of emitted visible light and an increase in the emission of infrared radiation. Eventually, the coal will no longer emit visible light and will appear as a dim red glow before becoming completely dark as it reaches room temperature.
What wavelength of maximum intensity does the Sun emit?
The Sun emits light in a broad range of wavelengths, peaking in the visible spectrum around 500 nanometers, which is green light. This peak intensity is a result of the Sun's temperature, which determines its blackbody radiation curve.
Why do hot star appear blue in color?
Because the peak of their blackbody curve is near blue in the spectrum, for the temperature of their photosphere.
Does strength curve relate to any exercise?
Yes, any movement at all relates to the strength curve.
What is the lowest temperature that will cause a blackbody to emit radiation that peaks in the infrared?
The temperature at which a blackbody radiates primarily in the infrared region is around 300 K (27°C). At this temperature, the peak of the blackbody radiation curve falls within the infrared spectrum.
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.
What is strength curve?
Relates to any exercise, Analyzes the components of strength production, Has seven factors
What is the most dominant color emitted by the sun?
Looking at the solar spectrum, the curve peak is around wavelength 0.45(microns) falling under the ultraviolet band. This ultraviolet band runs from 0.30 - 0.45. This curve then drops off rapidly and exponentially when under "air mass 0" conditions (outer space) in "air mass 1" conditions (the earths surface) the spectrum follows this curve, with intensity's reduced however as our atmosphere adsorbs some wavelengths better than others the curve tends to jump too and from the trend while still maintaining the exponential decline as seen under air mass 0 conditions. So in short ultraviolet I guess would be the sortest answer ^-^ -Jason MEng
According to Figure 2.11 in the textbook (Blackbody Curves) an object having a temperature of 1000 K emits mostly?
According to Figure 2.11 in the textbook, an object having a temperature of 1000 K emits mostly infrared radiation. At this temperature, the peak of the blackbody curve shifts towards longer wavelengths, which corresponds to the infrared region of the electromagnetic spectrum.
