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A small helium-neon laser emits red visible light with a power of 5.90 mW in a...

A small helium-neon laser emits red visible light with a power of 5.90 mW in a beam that has a diameter of 2.60 mm .

A)What is the amplitude of the electric field of the light?

Express your answer with the appropriate units.

B)What is the amplitude of the magnetic field of the light?

C)

What is the average energy density associated with the electric field?

Express your answer with the appropriate units.

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Answer #1

Concept – first find the intensity of the light using the power and area of cross-section of the laser. Use it to find the amplitude of electric field and magnetic field as shown below***********************************************************************************************
Check the answer and let me know immediately if you find something wrong or missing... I will rectify the mistakes asap if any

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