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| Q. |
If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound? |
| A. | 4 : 1 |
| B. | 2 : 1 |
| C. | 1 : 16 |
| D. | 1 : 4 |
| Answer» D. 1 : 4 | |
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Explanation: 0 |
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