Unformatted text preview: and t). Then substitute the numerical values. 7. An electromagnetic wave has the form E ( r ,t) = î E sin (kz - wt) + j E cos (kz - wt) where î and j are unit vectors in the x and y directions. (a) Show that the direction of the electric field rotates in the xy-plane. (This is circularly polarized light.) (b) What is the intensity of this EM wave? (c) Write an equation for the magnetic field of this wave as a function of position and time ( i.e. B ( r ,t))....
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This note was uploaded on 11/16/2011 for the course PHYS 214 taught by Professor Thorne during the Summer '08 term at Cornell.
- Summer '08