Saved Bookmarks
| 1. |
A sound produced on the surface of a lake takes 4.5 s to reach a boatman. How much time will it take to reach a driver inside water at the same distance if speed of sound in water is 4.5 times the speed of sound in air? |
|
Answer» A sound produced on the surface of a lake takes 4.5 s to reach a boatman. How much time will it take to reach a driver inside water at the same distance if speed of sound in water is 4.5 times the speed of sound in air? |
|