Answer to Question #237183 in General Chemistry for blake

Question #237183

A laser pulse with a wavelength of 525 nm

nm contains 4.40 mJ

mJ of energy. How many photons are in the laser pulse?


1
Expert's answer
2021-09-15T02:41:42-0400

The laser pulse in this question has a wavelength of


. To solve this problem, we first have to calculate the energy of a single photon in the laser pulse. The equation for calculating the energy of a single photon of an electromagnetic wave is where

is the speed of light, is planks constant and is the wave length of the photons.















= 1.16 × 1016 photons


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