

MCQOPTIONS
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1. |
Interaction between matter and electromagnetic radiation can be observed by subjecting a substance to magnetic fields in which of the following manner? |
A. | Both fields should be stationary |
B. | Both fields should be varying |
C. | One field should be stationary and the other should be varying |
D. | It must be subjected to only one field |
Answer» D. It must be subjected to only one field | |