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If the dust cocoon around a protostar emits radiation most strongly at a wavelength of 30 microns what is the temperature of the dust?
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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.
Are fullerenes solid at room temperature?
Yes, they strongly resemble soot.
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?
Ultraviolet. Most of the spectrum is invisible to people.
Which theory of the universe did the 1964 discovery of cosmic microwave background radiation support?
I didn't check the year... But the cosmic background radiation is said to support the big bang theory, because it agrees with the radiation that is expected from an expanding Universe.
Why must astronomers use sateltiles and earth orbiting observations to study the heavens at x-ray wavelengths?
Electromagnetic radiation with wavelength shorter than ultraviolet -- including x-rays -- is strongly absorbed by earth's atmosphere. X-ray detectors looking into space from the surface of the earth don't see anything, because no x-rays reach the surface ... the main reason that all life on earth has not been broiled yet by E&M radiation from space.
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
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.
What is the average winter temperature in Romania?
This strongly depends on the coordinates.
Are fullerenes solid at room temperature?
Yes, they strongly resemble soot.
Does temperature affect Ph levels in water?
The pH of water (or other liquids and solutions) is strongly dependent on the temperature.
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?
Ultraviolet. Most of the spectrum is invisible to people.
Which gas is liquid at ordinary temperature?
Any liquid can be a gas if you heat it strongly enough.
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.
Normally reactions that depend on enzymes are strongly temperature-dependent. Are the carbon-assimilating steps dependent on enzymes?
The influence of specific enzymes is strongly dependent on environmental conditions.
Which theory of the universe did the 1964 discovery of cosmic microwave background radiation support?
I didn't check the year... But the cosmic background radiation is said to support the big bang theory, because it agrees with the radiation that is expected from an expanding Universe.
Absorption of infrared radiation in the skin?
Infrared radiation penetrates through the tissue and is also absorbed by different molecules. It is strongly absorbed by certain pigments and blood which determine the skin color, the multi-colored irises and the white of our eyes.
Why must silver nitrate solution be kept in brown bottles?
Silver nitrate is very susceptible to reactions that destroy it, catalyzed by short wavelength light, which is strongly absorbed by brown bottles.
