A monochromatic light source emits 164 W of average electromagnetic power uniformly in all directions. The...

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Physics

A monochromatic light source emits 164 W of averageelectromagnetic power uniformly in all directions. The speed oflight is 3 � 10^8 m/s. Calculate the average electric-field energydensity 4 m from the source. Answer in units of J/m3 .(uE=1/2 E0E2)

Calculate the average magnetic-field energy density at the samedistance from the source. uE=1/2E0(cB)2

Find the wave intensity at this location.

What is the pressure exerted by the light on a mirror located atthe same distance from the source, assuming normal incidence andtotal reflection?

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