MCQOPTIONS
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| 1. |
Why is sound heard with more intensity through \[C{{O}_{2}}\] than through the air? [NDA] |
| A. | Density of \[C{{O}_{2}}\] is more than that of air |
| B. | Density of \[C{{O}_{2}}\] is less than that of air |
| C. | Air is bad conductor of heat |
| D. | \[C{{O}_{2}}\] is a compound, but air is a mixture of gases. |
| Answer» B. Density of \[C{{O}_{2}}\] is less than that of air | |