Chemistry: A laser emits light that has a frequency of 6.69 x 1014 s-1. If the laser emits a pulse (a burst of light) that contains 7.0 x 1017 photons, what is the total energy of that pulse in Joules? Do not use scientific notation in your answer. Give the answer ( in Joules) to 2 significant figures.

A laser emits light that has a frequency of 6.69

BreBreDoeCCx

14.02.2022

0.31 Joule

Explanation:

ΔE(per photon) = h·f = (6.63 x 10⁻³⁴J·s)(6.69 x 10¹⁴s⁻¹) = 4.44 x 10⁻¹⁹ J/photon X 7 x 10¹⁷photons = 0.31 Joules

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eddyy5900

24.12.2020

Sedimentary

Explanation:

Hope this helps:) have a good day

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