Question: In 1987, a laser at Los Alamos National Laboratory produced a flash that lasted 1 x 10-12 s and had a power of 5.0 x

In 1987, a laser at Los Alamos National Laboratory produced a flash that lasted 1 x 10-12 s and had a power of 5.0 x 1015 W. Estimate the number of emitted photons if their wavelength was 400 nm.

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