|
A person clapped his hands near a cliff and heard the echo. The minimum distance of the cliff from the person if the speed of sound is taken as 346 m/s is |
|||||||
|
(a) |
17.1 m |
(b) |
17.2 m |
(c) |
17.3 m |
(d) |
34.6 m |
|
A person clapped his hands near a cliff and heard the echo. The minimum distance of the cliff from the person if the speed of sound is taken as 346 m/s is |
|||||||
|
(a) |
17.1 m |
(b) |
17.2 m |
(c) |
17.3 m |
(d) |
34.6 m |