A student clapped his hands near a cliff and heard the echo after 5 seconds. What is the distance of the cliff from the student if the speed of the sound is taken as 346 meter per second -1
Answers
Answered by
1
speed of sound, v = 346 m/s
t = 5sec
If the distance between the hands of the student and the cliff is d metres. Then, sound waves travel a total distance of 2d metres to reach him back as an echo.
Hence, by using the elementary formula of speed, we can calculate the net distance travelled by sound waves.
speed = distance/ time
distance = speed × time
2d= 346× 5
d= 173×5= 865 metres
Hence, the distance of the cliff from the student is 865 metres.
Hope, it helps.
t = 5sec
If the distance between the hands of the student and the cliff is d metres. Then, sound waves travel a total distance of 2d metres to reach him back as an echo.
Hence, by using the elementary formula of speed, we can calculate the net distance travelled by sound waves.
speed = distance/ time
distance = speed × time
2d= 346× 5
d= 173×5= 865 metres
Hence, the distance of the cliff from the student is 865 metres.
Hope, it helps.
Similar questions