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| 1. |
Let s say we can hear a beat frequency of 2Hz from two tuning forks. The first tuning fork has a frequency of 100Hz. If wax is applied on the 2nd tuning fork, the beat frequency becomes 4Hz, what is the frequency of the 2nd tuning fork? |
| A. | 100Hz |
| B. | 98Hz |
| C. | 106Hz |
| D. | 104Hz |
| Answer» C. 106Hz | |