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 | |