Saved Bookmarks
| 1. |
The velocity of sound in air at 20 °C and 1 atm pressure is 344.2 m/s. At 40 °C and 2 atm pressure, the velocity of sound in air is approximately |
|
Answer» 250 m/s For a given medium, `v PROP sqrt(T)` `v_(1)/v_(2) = sqrt(T_(1)/T_(2))` Here, `v_(1) = 344.2 ms^(-1), T_(1) = 20^(@) C = 293 K` `T_(2)= 40^(@) C = 313 K` `therefore v_(2) =v_(1) sqrt(T_(2)/T_(1)) = (344.2) xx sqrt(313/293) = 355.75 = 356 ms^(-1)` |
|