MCQOPTIONS
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| 1. |
A calcite crystal has been placed on a black dot on a piece of white sheet and then rotated. On looking though the calcite crystal from above, we can see: |
| A. | One black rotating about the other stationary dot |
| B. | two stationary black dots |
| C. | one black dot only |
| D. | two rotating black dots |
| Answer» B. two stationary black dots | |