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When comparing a beam of red light and a beam of green light which beam contains the greater number of photons?
Wiki User
∙ 14y ago
Neither. The beams of red light and green light will have the same number of Photons, as energy is only related to frequency. The number of Photons is dependent on the intensity of the light beams.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoThe red beam. E=nhf so nrhfr=nbhfb thus nrfr=nbfb so nr=nbfb/fr and fb/fr is greater than 1.
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Is there a light stronger than Gamma?
The highest energy photons are described as Gamma. But in terms of the strength, there are more light sources that we encounter everyday of a greater intensity than gamma, as intensity is a measure of the number of photons arriving over an area in a given time. Therefore, visible light and infra-red from the sun are much more intense than the gamma we encounter everyday, as gamma photons are few and far between.
How do you deflect photons?
You extract the hydrogen pronuerons after you subtract the number of posotive electrons.
Define light intensity?
Light is composed of quanta called photons. The more photons, the greater the intensity. To see the slightest flicker of green light (the color to which our eyes are most sensitive), the minimum number of photons is six.
Which red line shows the same action spectrum corrected for the unequal number of photons emitted across the visible spectrum?
The red line in the second graph shows the same action spectrum corrected for the unequal number of photons emitted across the visible spectrum.
How many moles of photons with a wavelength of 660 nm are needed to provide 6 kJ of energy?
The energy carried by a photon is given byE = hfWhere h is Planck's constant (6.626x10^-34 Joule-seconds) and f is the frequency of the photon in Hertz (Hz).We are given the wavelength of the photon in the question in nanometers (nm). First, we need to convert this to (SI) units, because our equations only work with SI units. Then, we will calculate the frequency of the photon from its wavelength. Once we know the frequency of the photon we're interested in, we simply use the equation above to find the energy carried by one of them. Then we divide 6 kJ by that amount of energy, and the quotient will be the number of photons needed to carry 6 kJ. Finally, when we know the number of photons we need, we divide by the number of photons in a mole to get the number of moles.The SI unit of length is the meter (m). 1nanometer (nm) is 10^-9 meters.660 nm = 660 *10^-9 m = 6.6*10^-7 m.Now we will calculate this photon's frequency from its wavelength. These are related by the equationc = fLwhere c is the speed of light (3*10^8 m/s), f is the frequency of the photon and L is the wavelength of the photon.c = fL(3*10^8 m/s) = f * (6.6*10^-7 m)solving for f, we havef = (3*10^8 m/s) / (6.6*10^-7 m) = 4.54*10^15 s^-1Note that the unit of seconds (s) raised to the -1power is defined as 1 Hertz (Hz).f = 4.54*10^15 HzNow we will use the top equation to solve for the energy carried by one photon having this frequency.E = hfE = (6.626*10^-34 Js) * (4.54*10^15 Hz)E = 1.369*10^-17 JThis is how much energy is carried by one photon of wavelength 660 nm (which will also have a frequency of 4.54*10^15 Hz).How many of these do we need to provide 6 kJ? This is solved by simple division. Keeping in mind that 1 kJ = 1000 J, we haveNumber of photons * Energy per photon = 6 kJNumber of photons * (1.369*10^-17 J/photon) = 6 kJNumber of photons * (1.369*10^-17 J/photon) = 6000 JNumber of photons = 6000 J / (1.369*10^-17 J/photon)Number of photons = 4.382*10^20 photonsThis is how many photons (at this frequency) are needed to provide 6 kJ. How many moles of photons is this?Number of photons / number of photons in a mole = number of molesRecall that a mole of something is defined as 6.02*10^23of it. The same way a dozen eggs is defined as 12 eggs, a mole of eggs is 6.02*10^23 eggs. Equivalently, a mole of photons is 6.02*10^23 photons. SoNumber of photons / (6.02*10^23 photons per mole) = number of moles(4.382*10^20 photons) / (6.02*10^23 photons per mole) = number of moles7.279*10^-4 moles = number of molesForgive me if my arithmetic is off, as I don't have a good calculator handy. However, I believe this is the correct method to use.
What is the difference between a hard beam and a soft beam?
A hard beam is one that contains a greater number of high energy photons than low energy photons.A soft beam is one that contains a greater number of low energy photons that high energy photons.During the filtration of a heterogenous beam (one that contains photons with different energies), low energy photons are removed from the beam, effectively "hardening" it.
Is greater than in integers means addition?
No. "Greater than" is for comparing which number is larger, and is denoted with the symbol >.
Light intensity is?
Light is composed of quanta called photons. The more photons, the greater the intensity. To see the slightest flicker of green light (the color to which our eyes are most sensitive), the minimum number of photons is six.
What are comparing integers?
comparing integers are when you have two numbers, and you need to find out how to get the greater number. Ex: -3 > < -4. You have to see which number is the bigger number, and then put a greater than or less than sign. so the answer would be: -3 because you have to find the number that is closest to zero on the number line.
When comparing 437.5 and 4375 which digit tells you witch number is greater?
the last # and the decimal point
What number is ten times greater than a hundred thousand?
Comparing to 100,000 . . .1,000,000 is ten times as great,1,100,000 is ten times greater.
Is number 2 a greater number or a less number?
In order to compare numbers, you must have at least two. You can not compare 2 to anything without another number. For example, comparing '2' and '5', 5 would be greater than 2.
What are two methods of comparing whole numbers?
tell how you could use a number line to determine which of two numbers is greater
Can a number with a 3 in the tens place be greater than a number with an 8 in the tens place?
Yes & No...For example, 230 is greater than 180, but if you are comparing two numbers that are both less than 100, then the answer is no. For example 83 is greater than 39.
What is comparing numbers?
In math, the term comparing numbers refers to seeing which of two numbers is larger or smaller. To denote whether a number is greater or lesser than another number, you use the mathematical symbols for these terms. You also can compare two numbers using a number line.
What is a number greater than 1000 whose prime factorization contains 1 prime number that does not repeat?
3000. It contains non-repeating 3 as a factor.
What are two mathods of comparing numbers?
One option for comparing two numbers is to subtract the first number from the second number. If the result is less than zero, the first number is larger. If the result is greater than zero, the second number is larger. If the result is zero, the numbers are equal. Another option (for positive numbers) would be to divide the first number by the second number. If the result is greater than one, the first number is larger. If the result is less than one, the second number is larger. If the result is one, the numbers are equal. This rule flips if you are comparing negative numbers.
