An open organ pipe 30 cm long and a closed organ pipe 23 cm long, both of same diameter , are each sounding its first overtone , and these are in unison. what is the end correction of these pipes?

First overtone of open organ pipe is given as

first overtone of closed organ pipe is given as

now they are in unison so we will have

so end correction of both pipes is e = 1 cm

true

explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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