How long will sound take to travel in a) an iron rail, b) air, both 3.3 km in length? (Take speed of sound in air to be 330 metre per second and in iron to be 5280 metre per second)
Answers
Answer:
Timetaken=330m/s3300m, given that the speed of sound in iron rail is 330 m/s and the distance is 3.3 km, that is, 3300 meters. = 10seconds. Hence, the time taken forthe sound to travel through the iron rail and air are 0.625 seconds and 10 seconds respectively.
given speed of sound in air is equals to 330 metre per second and speed of sound in iron 5280 per second
given that the speed is in metre we need to convert the length between the two tanks also in metres so 3.3 kilometre will be is equals to 3300m .
we all know that a speed is equals to distance by time so :- time =distance /speed .
(I) by the above formula .
time =(3300m/ 5280m )*s
=0.625 s
(ii) time = (3300m/330 m )*s
= 10 s
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