Wednesday
November 26, 2014

Homework Help: physics

Posted by nnanga on Sunday, September 15, 2013 at 8:04am.

I=0.5E0EOC where E0 is the permitivity of the vacuum and C is the velocity of light. a)Show that the units of the equetion are consistant b)A certain helium-neon laser emits 0.20mW in a beam of cross sectional area 3.0mm.Determine the peak values of the electric field associated with this beam.

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