MCQOPTIONS
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| 1. |
A boy clapped his hands near a cliff and heard the echo 3 s later. If the speed of the sound is 346 ms-1, then the distance of the cliff from the boy is |
| A. | 345 m |
| B. | 289 m |
| C. | 519 m |
| D. | 600 m |
| Answer» D. 600 m | |