

MCQOPTIONS
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1. |
. When light is described as an electromagnetic wave, it consists of a periodically varying electric E and magnetic field H which are oriented at an angle |
A. | 90 degree to each other |
B. | less than 90 degree |
C. | greater than 90 degree |
D. | 180 degree apart |
Answer» B. less than 90 degree | |