00:01
Here we have an organ pipe open at one end and closed at one end.
00:08
So for an open closed pipe, the fundamental frequency is, let us say, f0, then the higher level frequencies are given by f equal to an f0, where n is equal to 2m plus 1, where m is an integer from 0, 1, 2, 3 and so on.
00:44
So the first frequency is for n equal to 0, sorry, m equal to 0.
00:52
For m equal to 0, n equal to 1 and the first frequency will be simply 1 f0 which is equal to f0 the fundamental frequency.
01:02
So this frequency has its wavelength and it is it is shown in the figure now for the next frequency we choose the next value of m though so first first harmonic was for m equal to zero so for next one will be m equal to one and for m equal to one n equal to two m plus one equal to two into one plus one equal to three so the frequency of next harmonic will be n f not equal to three f not where f not is fundamental frequency so the correct option is 3f...