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What you the no of photons of light with wave 4000 pm that provided 1J energy?
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What is the numbers of photons of light with a wavelength of 4000 pm that provide 1 j of energy?
If a certain source emits radiation of a wavelength of 400 nm then the energy in a mole of photons of this radiation can be found using E = hc/w. The energy in kJ/mol of a mole of these photons is approximately 300 kJ / mole.
How do you Compare red light and blue light using the term energy?
This is a good question, and one that is of interest to those concerned with the environment. To understand energy in light, we need to understand waves and wavelengths.Consider waves on an ocean - each wave has a high peak and a low trough, and the ocean is an endless cycle of peaks and troughs. If we were to measure the distance from one peak to the next peak, that measurement would describe the length of one wave. This measurement is appropriately called the wavelength. On the ocean, we would likely measure wavelengths in feet or meters.Light travels in waves too, but unlike ocean waves, light waves are so small that we cannot see individual light waves. In fact, light waves are so infinitesimally tiny, we describe light wavelengths in nanometers (a nanometer is one billionth of one meter) or often in Angstroms (1 tenth of a nanometer, or one ten-billionth of one meter).Visible light ranges in wavelength from approximately 4000 Angstroms (blue) to 7000 Angstroms (red). Blue light is therefore carried by waves that are shorter than red light.Ultraviolet light has even shorter waves than blue light (100 to 4000 Angstroms), while at the other end of the spectrum, infrared has even longer waves than red (7000 to 10,000,000 Angstroms).The amount of energy in light is inversely proportional to its wavelength. In other words, as the wavelength of light becomes shorter (more blue), the energy carried by that wave becomes higher. Specifically, the energy calculation for light is:E (hc)/λ,Where h is Planks Constant, C is the speed of light, and λ is the wavelengthWhile we will not concern ourselves with the mathematics here, the following statements help illustrate the relationship between light color and energy:Blue light (4000 Angstroms) has 75% more energy than red light (7000 Angstroms) when both lights are exactly the same brightnessUltraviolet light (1750 Angstroms) has four times more energy than red light of the same brightnessAs an aside, the relationship between light color and energy is what has so many people concerned about the ozone layer. The ozone layer is a very high, very thin layer of ozone (O3), and one interesting property of ozone is that it filters out ultraviolet light. Without the ozone layer, high energy ultraviolet light penetrates the atmosphere, and reaches us on the Earth's surface. Because ultraviolet light carries so much more energy at the same brightness than visible light, it has the potential to cause more damage to our bodies, including cancer.
What is the frequency in MHz of a beam of blue light whose wavelength is 4000 Ångströms?
well is the 75 million
What is the velocity of an 500 kg elevator that has 4000 J of energy?
4m/s
A machine has an effciency of 91 percent if the energy is supplied to the machine is 4000 watts what is the amount being used for work?
3640 Watts.
What is the numbers of photons of light with a wavelength of 4000 pm that provide J of energy?
2.012 x 10^(16)
What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?
2.012 x 10^(16)
What is the numbers of photons of light with a wavelength of 4000 pm that provide 1 j of energy?
If a certain source emits radiation of a wavelength of 400 nm then the energy in a mole of photons of this radiation can be found using E = hc/w. The energy in kJ/mol of a mole of these photons is approximately 300 kJ / mole.
When astronomers say that the universe became transparent years after the big bang what do they mean?
In the early period after the Big Bang, the universe consisted of a plasma of nuclei, electrons and photons. These protons were bound in the plasma and not free to move about. About 0.4 million years after the Big Bang, when the universe had cooled to around 4000 K, photons stopped being in thermal equilibrium with matter: the universe became transparent to photons - light could move about.
What is the ISBN of The Light in the Forest?
The ISBN of The Light in the Forest is 1-4000-7788-5.
What are the visible wavelengths of light?
4000 Angstrom to 8000 Angstrom
If the energy supplied to the machine is 4000 watts for 91 percent efficiency what is the amount being used for work?
The idea here is to calculate 91% of 4000. By the way, technically "watts" is not a unit of energy. It is a unit of power - that is, energy per unit time.
Machine is supplied energy at a rate of 4000 W and does useful work at a rate of 3760 W. What is the efficiency of the machine?
3760 / 4000 = 0.94 = 94% efficient
What core produces sunlight?
The core of the sun does not produce any sunlight, the surface of the sun does.Photons are produced in the core as gamma rays at a temperature of about 15 million Kelvin, being absorbed and reemitted repeatedly by atoms, cooling along the way, take from 10,000 years to 170,000 years to reach the surface as visible light at a temperature of about 4000 Kelvin to 6000 Kelvin. As the reemitted photon is usually not the same energy as the one absorbed by the atom (usually lower energy and thus cooler), it is reasonable to assume it is actually a different photon (although being bosons photons are all identical and indistinguishable).Once emitted on the surface of the sun photons that arrive on earth as sunlight take only 8 minutes to complete this final trip.
If a cycle light says 110 lumens what is that in candle power?
I think its 4000, fred.
What is 4000 percent of 4000?
4000% of 4000 =4000/100 * 4000 =160,000
How many years were between 8000 bc and 4000 bc?
4000 years.4000 years.4000 years.4000 years.4000 years.4000 years.4000 years.4000 years.4000 years.4000 years.4000 years.
