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A typical wavelength of infrared radiation emitted by your body is 25 micrometers. What is the energy per photon of such radiation?
* E = hf = hc/wavelength = (6.63 x 10-34 J*s)(3.00 x 108 m/s)/(25 x 10-6 m) = 7.9 x 10-21 J per photon. This is the energy of a photon at that wavelength. == The person who asked the question answered it. Why ask a question to which you already know the answer? And the body under "normal" conditions radiates infrared (IR) most strongly at about 10 micrometers.
Excited mercury atoms emit light strongly at a wave of 436 nm What is the frequency of radiation What is the energy of this radiation Good illustration of the electromagnetic spectrum?
The frequency of radiation is calculated using the formula f = c/λ, where c is the speed of light (3.00 x 10^8 m/s) and λ is the wavelength in meters. Therefore, the frequency is 6.88 x 10^14 Hz. The energy of this radiation can be calculated using the formula E = hf, where h is Planck's constant (6.63 x 10^-34 J·s). Thus, the energy is 4.00 x 10^-19 J. An illustration of the electromagnetic spectrum would include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays arranged in order of increasing frequency and decreasing wavelength.
The star Rigel radiates most strongly at about 200 nanometers How hot is it?
Rigel is a blue supergiant star with a surface temperature of around 12,100 Kelvin. It emits most strongly in the ultraviolet part of the spectrum at around 200 nanometers due to its high temperature.
How much radiation is absorbed by oxygen and ozone?
UV-B radiation is uniquely absorbed by the ozone layer. Most of the more energetic solar radiation has been absorbed by other atmospheric constituents before the ozone layer. The atmosphere stops the classical alpha, beta and gamma radiations. Neutrons decay with time, and are also slowed a bit. Muons make it all the way to Earth's surface, as do many cosmic rays (mostly protons).
Is atomic number 64 magnetic?
Gadolinium is ferromagnetic at temperatures below 20 °C and is strongly paramagnetic above this temperature.
20000 K What is the wavelength at which it radiates most strongly?
To find the wavelength at which an object radiates most strongly, you can use Wien's Law, which states that the wavelength of maximum intensity radiation (λmax) is inversely proportional to the temperature (T). In this case, for 20,000 K, the wavelength would be around 144.44 nanometers (nm).
How hot is a metal being welded if it radiates most strongly at 540 nm?
The peak wavelength of 540 nm corresponds to a temperature of about 5300°C (9572°F) according to Wien's displacement law, which describes the relationship between an object's temperature and the wavelength at which it emits radiation most strongly. This indicates that the metal being welded is extremely hot, as welding typically occurs at temperatures above 2500°C (4500°F).
You body temperature is about 300 degrees Kelvin. At what wavelength do you radiate most strongly. What is the region of the electromagnetic spectrum is this. Do you understand now how ...........?
10,000 nanometers is infrared light. Rattlesnakes can sense infrared quite well with their tongues. Humans can sense infrared light with the nerves in our skin but we can't make out shapes or judge distances this way.
What kind of objects better radiate in shorter wavelengths?
Objects with higher temperatures tend to radiate more strongly in shorter wavelengths. 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. Therefore, objects with higher temperatures will emit more of their radiation in shorter wavelengths.
What is the definition of lambda max for a particle absorbing in the uv region?
Lambda max (λ max) is the wavelength at which a particle absorbs light most strongly in the ultraviolet (UV) region. It represents the peak absorbance of the particle's specific UV absorption spectrum.
What is wavelength vs absorbance?
Absorbance refers to the extent to which a sample absorbs light depends strongly upon the wavelength of light while wavelength refers to the Forms of electromagnetic radiation like radio waves, light waves or infrared (heat) waves make characteristic patterns as they travel through space
How does the wavelength of maximum absorbance relate to the color of a substance?
The wavelength of maximum absorbence relates to the color, because the only color that is not absorbed will be the color of the item. For example, plants are green because they absorb red and blue light, and reflect green light.
What is the wavelength of infrared for best water absorption?
The best wavelength for water absorption is around 3,000 to 3,500 nanometers in the near-infrared spectrum. Water molecules strongly absorb infrared radiation in this range due to the stretching and bending vibrations of the O-H bonds. This absorption is commonly used in remote sensing applications for water content detection.
What is peak absorbance?
Peak absorbance refers to the wavelength at which a substance absorbs light most strongly. It is commonly used in spectrophotometry to determine the concentration of a substance in a solution by measuring the absorbance at its peak wavelength.
How does the wavelength of light impact absorbance in a substance?
The wavelength of light affects absorbance in a substance because different substances absorb light at different wavelengths. When the wavelength of light matches the absorption peak of a substance, it is absorbed more strongly, leading to higher absorbance.
What is the average winter temperature in Romania?
This strongly depends on the coordinates.
Which form of radiation is most ionising?
Alpha radiation is the most ionizing form of radiation because it consists of alpha particles, which are large and heavy and interact strongly with matter, causing a high degree of ionization.
