The electric field of uniform plane wave is given by E = 20 sin (2 p x – McqOptions

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1.	The electric field of uniform plane wave is given by E = 20 sin (2 p x 108t- pz) x + 20 cos (2 p x 108t - pz) y. Find phase velocity
A.	2 x 108 m/s
B.	p x 108 m/s
C.	2p x 108 m/s
D.	none of these
Answer» B. p x 108 m/s

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