Question

asali pipe is of length 20 metre is ritchya a child at one and the child on the other and here's to sound after some intervatef time. find difference in the time also give reason for having two sound
give
speed of sound equals to 1 5 9 5 0 metre per second squared divided by speed of sound in air equals to 144 metre per second​

Answer 1

Answer:

I don't know this question answer so I can't tell you sorry for that please mark me as a brainlist

Answer 2

Answer:

Do it by yourself don't take the help of any other people