Asked by nicole
A laser pulse with wavelength 540 nm contains 4.40 Mj of energy. How many photons are in the laser pulse?
Answers
Answered by
DrBob222
First calculate the energy of one photon.
E = hc/lambda
Then knowing the total energy you can calculate the number of photons.
E = hc/lambda
Then knowing the total energy you can calculate the number of photons.
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