What is the frequency of a photon with wavelength of 400nm?
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What is the frequency of a photon with wavelength of 400nm?
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- How many photons with a wavelength of 450 nm is required to have a mass of 1.25 micrograms?How many 890-nm photons does it take to have the same total energy as five 178-nm photons? ____photonsA photon has a wavelength in a vacuum of 500nm, if its energy is doubled, what is the associated wavelength in a vacuum?
- A laser emits a pulse of light with wavelength 532 nm. If the total energy contained in the pulse is 1.2 J, the number of photons in the pulse is?A photon with a wavelength of 4.16 nm strikes a surface and emits an electron with kinetic energy of 124.6 eV (electron volts). What is the binding energy of the electron in J?Photons that have a wavelength of 0.00226 nm are Compton scattered off stationary electrons at 33.0 degrees. What is the energy E of the scattered photons? E = ? J