Pulses of UV lasting 2.00 ns each are emitted from a laser that has a beam of
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Pulses of UV lasting 2.00 ns each are emitted from a laser that has a beam of diameter 2.5 mm. Given that each burst carries an energy of 6.0 J,
(a) determine the length in space of each wavetrain.
(b) find the average energy per unit volume for such a pulse.
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