MCQOPTIONS
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| 1. |
Which is not the correct reason for sound of speed being higher in helium than in air at the same temperature? |
| A. | for helium is higher than air |
| B. | Gas constant is same for both |
| C. | Helium is lighter than air |
| D. | R for helium is much larger than for air |
| Answer» C. Helium is lighter than air | |