MCQOPTIONS
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| 1. |
In which of the following media can sound travel through?(i) Glass of water(ii) Balloon full of air(iii) Iron bar(iv) Vacuum |
| A. | (i) and (ii) |
| B. | (i) and (iii) |
| C. | (i), (ii) and (iii) |
| D. | All of these |
| Answer» D. All of these | |