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The average energy of a photon in a pulsed laser beam is
2.39 eV, with a minimum uncertainty of 0.0155 eV. Each pulse has an
average of 5.00 * 10^12 photons. Find (a) the time duration of each
pulse, (b) the wavelength of the light, and (c) the energy per pulse in J.

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The average energy of a photon in a pulsed laser beam is2.39 eV, with a minimum uncertainty of 0.0155 eV. Each pulse has anaverage of 5.00 * 10^12 photons. Find (a) the time duration of eachpulse, (b) the wavelength of the light, and (c) the energy per pulse in J.