A laser used to weld detached retains emits light
with a wavelength 652 nm in pulses that are of 20ms
duration. The average power during each pulse is
0.6W. The energy in each pulse and in a single
photon are
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a laser used to weld detached retains emits light with a wavelength 652nm in pulses that are of 20ms duration. the average power during each pulse is 0.6W. the energy in each pulse and in a single photon are? (ans : 7.5 x 1016 eV, 1.9 eV) how to proceed with the sum pls explain.
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