Question

25.23: A typical helium-neon laser found in supermarket checkout scanners emits…

A typical helium-neon laser found in supermarket checkout scanners emits 633-nm-wavelength light in a 1.0 mm diameter beam with a power of 1.4 mW.

A) What is the amplitude of the oscillating electric field in the laser beam?
B) What is the amplitude of the oscillating magnetic field in the laser beam?

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