that you have to note down and then you can calculate velocity of sound equal to mu that frequency mu into this lambda from here this is the very simple experiment, but this is the classic example of transverse event longitudinal wave and wave form also I was able to show you transverse in a string, but this in air column I cannot be cannot see, but you can realize that the same formula we are using for calculating the velocity of sound also.
आता यावरून सूत्राप्रमाणे आपल्याला आवाजाची गती काढता येईल. हे आडव्या लहरींचे सुरेख उदाहरण आहे. त्या मी तुम्हाला तारेवर दाखवल्या.