In a pipe closed at one end and filled with air, a 384-Hz tuning fork resonates when the pipe is 22-cm-long; this tuning fork
does not resonate for any smaller pipes.
(a) State three other lengths at which this pipe will resonate with the 384-Hz tuning fork. Explain / show your
reasoning

Three other length for which resonance will occur is 66 cm, 110 cm and 154 cm

Explanation:

As we know that the length of the pipe is 22 cm

Now let say it is in 1st harmonic state so we have

so we have

So we have

For N = 1

For N = 2

For N = 3

the awnser is d you right bro