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Q. 19

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 901

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Short Answer

A helium-neon laser emits a -mm-diameter laser beam with a power of . What are the amplitudes of the electric and magnetic fields of the light wave?

The amplitudes of the light wave's electric and magnetic fields is,

See the step by step solution

Step by Step Solution

Step: 1 Finding the values of :

Finding the world first

Then finding the values

Step: 2 Finding the vales of :

By using the formula,

Step: 3 Finding the values of :

By using,

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