Physics · Electromagnetic Theory

If the electric field of a plane electromagnetic wave in free space is given by &vec;E = (4&circ;x + 3&circ;y) e i(ωt + ax − 600y) , then the value of 'a' in SI units is:

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If the electric field of a plane electromagnetic wave in free space is given by &vec;E = (4&circ;x + 3&circ;y) e i(&omega;t + ax &minus; 600y) , then the value of 'a' in SI units is: