Question

calculate the velocity of sound in air if an observer of at a distance of 425 m from a building hear an echo after 2.5 seconds

Answer 1

here is your answer and hope it helps you

Answer 2

Hi there,

Echo is caused due to reflection of sound.

Then the sound must have travelled 425 m two times.


So distance travelled=850 m

Now,
Speed=Distance/time

=850/2.5
=340 m/s

$<marquee>Hope this helps</marquee>$

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