Asked by Anonymous

A laser pulse with wavelength 540 nm contains 4.40 Mj of energy. How many photons are in the laser pulse?
Answered by DrBob222
E = hc/wavelength. Substitute and solve for E = energy of one photon. Then,
E of 1 photon x #photons = 4.40E6 J.
Solve for # photons.
Answered by Harsh
1.198
Answered by ur mom
idk man
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