McqMate
| Q. |
Speed of sound in air depends on the - |
| A. | Chemical conditions |
| B. | Physical conditions |
| C. | Pitch |
| D. | None of these |
| Answer» B. Physical conditions | |
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Explanation: Wind can increase or decrease the speed, and can even push sound waves sideways. Air density affects it. Temperature, pressure, humidity and gas mixture can each affect the density. |
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