Question: ( 8 points ) A ruby laser emits light at a wavelength of 6 9 4 nm . a . What is the total energy

(8 points) A ruby laser emits light at a wavelength of 694 nm .
a. What is the total energy (in kJ) of 2.50 moles of photons from the ruby laser?
b. If a pulse has a total energy of 1.550 mJ , how many photons are contained in the pulse?
( 8 points ) A ruby laser emits light at a

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