0
A photon has a wavelength 624 nm. Calculate the energy of the photon in joules.?
Wiki User
∙ 13y ago
You know that,
E = h*c/λ
Where
h = Plank's constant = 6,626 x 10-34 J*s
c = speed of light = 3*108 m/s
λ = greek letter lambda representing the wavelength =624nm => 6,24 *10-7m
and therefore [(6.626 X 10^-34 J) X (3 X 10^8 m/s)] / (6.24 x 10^-7) = 3.18 x 10^-19 ... That should be right!
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoUsing velocity = frequency * wavelength, and noting that all Electromagnetic waves have a speed of 3.0 * 108 , the frequency of the light is 1.2 * 1015 Hz.
The energy of a photon with a frequency, f, is given by Energy = fh; where h is the Planck's constant. Substituting values of f and h(= 6.26 * 10-34) , the energy of the photon is found to be 7.512 * 10-19 J.
Add your answer:
Earn +20 pts
The line spectrum of lithium has a red line at 670.8 calculate the energy of a photon with its wavelength?
2.93x10^-19 Joules first use the v=c/h formula to find frequency then use the energy formula to find energy.
The barium atom has an emission with wavelength 554 nm green Calculate the frequency of this light and the energy of a photon of this light?
- frequency of this light : c=ln, so n=c/l (and remembering that 1 nm = 1 x10-9 m) = (3.00 x 108 m/s)/554x 10-9 m) = 5.42 x 1014 1/s - the energy of a photon of this light: E(photon) = hn = (6.6262 x 10-34 J·s)(5.42 x 1014 1/s) = 3.59 x 10-19 J
How do the waves of the electromagnetic spectrum differ?
In the spectrum of electromagnetic radiation the wave property that changes is the frequency. So for example xrays have higher frequency then blue light which has higher frequency then red light which has higher frequency then radio waves etc.
Discrete bundle of electromagnetic energy?
photon
What type of EMR has the longest wavelength?
A photon is a fundamental or elementary particle and the carrier of the electromagnetic field. In this light (no pun intended) it can be applied to all electromagnetic energy, including radio waves. There wouldn't be a "lowest frequency" of electromagnetic radiation that was not photonic. ---- ...or if there was it would have a wavelength the size of the Universe : ) Couldn't carry a whole lot of data there...
How do you calculate the energy in joules of a photon of green light having a wavelength of 529 nm?
The energy of this photon is 3,7351.10e-19 joules.
A photon has a wavelength 628 nm. Calculate the energy of the photon in joules?
The energy of the photon is 3,1631.e-19 joule.
What is the energy (in joules) of an ultraviolet photon with wavelength 180nm?
1.11 atto Joules.
How do you calculate photon wavelength with only the energy of the photons?
Photon Energy E=hf = hc/w thus wavelength w= hc/E or the wavelength is hc divided by the energy of the photon or w= .2 e-24 Joule meter/Photon Energy.
What is the energy of a photon emitted with wavelength of 518 nm?
3.84 x 10-19 joules.
The line spectrum of lithium has a red line at 670.8 calculate the energy of a photon with its wavelength?
2.93x10^-19 Joules first use the v=c/h formula to find frequency then use the energy formula to find energy.
Can you convert from joules to photons?
Joules is a unit of energy; watts is a unit of power. You can't just convert it. The relationship between the two is: power = energy / time in units: watts = joules / second
How do you find the energy of a photon?
You need to know the photon's frequency or wavelength. If you know the wavelength, divide the speed of light by the photon's wavelength to find the frequency. Once you have the photon's frequency, multiply that by Planck's Konstant. The product is the photon's energy.
What is the amount of energy for each photon called?
It depends on the wavelength of the photon. Energy of each photon is hc/λ, where h = Planck's constant = 6.626x1034 Js, c = speed of light = 3x108 m/s, and λ = wavelength of the photon
What is the frequency in hertz and the energy in joules of an x-ray photon with a wavelength of 2.32 Å?
For the frequency, first convert the wavelength to meters (divide the number of Angstroms by 1010), then use the formula: wavelength x frequency = speed. Using the speed of light in this case. Solving for frequency: frequency = speed / wavelength. To get the photon's energy, multiply the frequency times Planck's constant, which is 6.63 x 10-34 (joules times seconds).
How do you calculate energy per mole of photons if you know joules per photon?
You have to multiply the joules/photon by Avogadro's Number, i.e., by the number of particles in a mole.
What is the wavelength of a photon whose energy is twice that of a photon with a 580 nm wavelength?
Twice the energy means twice the frequency, and therefore half the wavelength.
