McqMate
| Q. |
What are audible sound waves? |
| A. | Having frequency less than 20 Hz |
| B. | Having frequency between 20 Hz to 20000 Hz |
| C. | Having frequency more than 20000 Hz |
| D. | None of above |
| Answer» B. Having frequency between 20 Hz to 20000 Hz | |
|
Explanation: 0 |
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