Photon Pulse Physics Problem P P P?
A powerful laser can emit in 0.83×10-2 s an intense pulse of light having an energy of 5990 J. If the frequency of the light is 5.98×1014 Hz, how many photons will be emitted in this pulse.
I found E= 3.96E-19 Joules. So take 59990 and divide it by 3.96E-19. One photon has 3.96E-19 J in it and I divided it from the total and I still got the wrong answer, What am I missing???
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Update:I got it feanor. THANKS!!! for your concern though.
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5990 J / 3.96E-19 J = 1.51 x 10^22 photons
Is this what you got?
The energy of one photon is h nu, or planck's constant times the frequency. How many such photons does it take to make up 5990 joules?
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Well your question states that the total energy outputted was 5990J,
but your answer has 59990J.
So which is it?