00:01
Now this question, you have a son wave with frequency if equals 16 .3 kilohertz.
00:09
Now suppose this son wave emoji is through a circular opening, right? somewhere here, i look at the cross section of this circular opening.
00:17
So this is war, right? barrier and the wave, the sound wave are going through like this, right? and it comes out.
00:30
With a defraction angle, right? so there's this opening, this opening has a distance which i call it d is d, right? and d according to the question is given by 0 .203 meters.
00:52
So you have, so you look at the diffraction angle, for example, differential angle, it's going you know, something like this.
01:05
So the sita, while the diffraction angle is simply given by the sign cita, you know, it calls the wavelengths of the wave like this, is the wavelength lambda divided by d, right? that's the fraction anger, the sign of the function angle is simply the ratio of the wavelength lambda divided by the size of the opening, right? that's d.
01:38
So lambda is you know given by it's determined by two things you know the frequency you know it's given a frequency is always given by the speed of wave and times two by oh sorry divided by lambda right let me you are to wear a bit better times by one over lambda right so the frequency relate to velocity divided by lambda...