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Please help me :(


1.) A laser emits light of frequency = 4.74 x 1014 sec-1. What is the wavelength of the light in nm?


2.) A certain electromagnetic wave has a wavelength of 625 nm.

a.) What is the frequency of the wave?

b.) What region of the electromagnetic spectrum is it found?

c.) What is the energy of the wave?

Sagot :

A laser light of frequency
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