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PHY 102
Number of photons = 5.0 x 104/6.5 x 10-26. Number of photons = 7.7 x 1029. 3. Ultraviolet light is responsible for sun tanning. Find the wavelength of an ultraviolet photon whose energy is 6.4 x 10-19 J. E = hf. c = f E = hc/ = hc/E = 6.63 x 10-34 x 3 x 108/6.4 x 10-19 = 311 x 10-9 m. 4. A light source emits a beam of photons.
number of photon equation

[DOC File]Photons - School of Physics
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Calculate the energy of the photons emitted from this laser. Given that the laser has a power of 2.00 mW, calculate the number of photons emitted per second. Photosensitive surfaces are not always very efficient. Suppose the fractional efficiency of a Cs surface is 1.00 ( 10-16 (one in every 1.00 ( 1016 photons ejects an electron).
number of photons formula

[DOC File]Physics II - Magnetism
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Calculate the number of photons per second emitted by a monochromatic source of specific wavelength and power. Power is work divided by time, which means that it is also energy divided by time. Use the equation to calculate the energy for one photon.
how many photons are produced

[DOC File]Activity calculation:
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is defined as the ratio of the total number of events which are detected to the total number of γ-ray photons emitted by the radioactive source. It is the product of intrinsic total efficiency and a
number of photons emitted

[DOC File]Name:
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Make observations about the emitted photons according to color, energy, and number of photons of different energies. Draw the spectrometer results below and then explain the image. The de Brogie model of the atom is a fairly refined model that shows lot conceptually without being TOO complex.
how to find number of photons

[DOC File]In this unit we concentrate on the interactions between ...
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a) Frequency of light emitted, b) energy of a single photon in joules, c) energy of a photon in electron volts, d) momentum of a single photon, e) number of photons emitted in a quarter second burst of laser light and f) length of the beam.
energy of emitted photon

How to find number of photons emitted