The science behind a flute 

But hindustani flute is one end closed pipe

Hi I’m struggling with the same question…but actually i think ni dha pa should be played with a stronger whistle wich somehow maybe change the wave for a higher pitch…?

@NAYL I understand u are talking about the mandra saptak and madhya saptak 'pa' but on internet i got the values of the frequencies little confusing to me such as: Sa Re Ga Ma Pa Dha Ni Mandra Saptak: 120 Hz, 135 Hz, 144 Hz, 160 Hz, 180 Hz, 202.5 Hz, 216 Hz.} Madhya Saptak: 240 Hz, 270 Hz, 288 Hz, 320 Hz, 360 Hz, 405 Hz, 432 Hz.} Taar Saptak: 480 Hz, 540 Hz, 576 Hz, 640 Hz, 720 Hz, 810 Hz, 864 Hz.} In this we can see that when playing in same octave(saptak) the frequency increases from ma to pa. But thanks for replying😇 Also we can play 'pa' in two ways :- 1: by covering all 6 holes and blowing with high pressure and 2 :- by leaving first hole open and covering all holes In both ways the frequency is same but according to this explaination it should change.

when you close all the 6 holes, you play "lower octave" Pa, 5 holes - Dha, 4 holes - Ni, 3 holes - Sa. , 2 holes middle octave Ri, 1 hole-Ga, 0.5 holes - Sudha Madhyam, 0 holes - Teevra Madhuyam.. In the same sequence ,you can play higher octave respectively when you blow hard.. That's why in flute, you cannot play lower octave Ri, and Ga.. That is flute's limitation...

@HBR2K thanks but my query was about the frequency of sa is less than pa dha and ni Which according to the video should be greater since we play sa by closing 3 holes and pa by closing all 6 holes then the wavlength of wave of sa should be smaller than the wavelength of pa and hence the frequency of sa should be greater than frequency of pa but in reality the frequency of sa is less than frequency of pa

@@Lucifer_The_Devill there is octave difference