We say that sound travels faster in denser medium, but when we cover our ears tightly with our hands
(having solid bones and liquid blood which are denser than air) we cant hear anything . Why is it so??
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
see speed doesnt have to do anything with the intensity when u close ur ear intensity reduces and time will inc prob but we cant meausre it until we have sophisticated tool :)
speed = frequency * wavelength
i is independent of speed
what does i=ka*a mean??
If you recall, sound is kinetic energy in the form of a wave or vibration moving through the molecules of a substance. In order to hear a given sound that energy must be transferred to one's eardrum and eventually the inner ear bones and so forth. If you cover your ears with your hands that energy is being absorbed and dissipated by the matter of which your hands are composed, therefore reducing the intensity of sound that reaches your inner ear.