Section D: Give a long answer to the question given below.
a. Calculate the wavelength of a sound wave whose frequency is \(240\ hz\) and speed is \(480\ ms^{-1}\) in a given medium.
b. In which of the three media, air, water or steel, does sound travel the fastest at a particular temperature?
c. What is the inaudible range of the normal human ear?
d. The frequency of a source of sound is \(60\ Hz\). How many times does it vibrate in a minute?
e. Why is a sound wave called a mechanical wave?
b. In which of the three media, air, water or steel, does sound travel the fastest at a particular temperature?
c. What is the inaudible range of the normal human ear?
d. The frequency of a source of sound is \(60\ Hz\). How many times does it vibrate in a minute?
e. Why is a sound wave called a mechanical wave?
a. The wavelength of the given sound wave is whose frequency is \(240\ hz\) and the speed is \(480\ ms^{-1}\) in a given medium.
b. Sound travels fastest through . As the density increases the speed of the sound .
c. The inaudible range of an average human ear lies .
d. The number of vibrations in one minute will be .
e. Sound waves are mechanical waves because they require a for propagation. Travel through vibrations in these particles. Hence sound waves are called mechanical waves.