When a reciever of sound (e.g., microphone diaphragm or human eardrum) is receiving sound, the nature of its vibration is most likely to be

Snakes receive sound vibrations by

When a body oscillates with its natural frequency then its vibration is called

When a body oscillates with its natural frequency then its vibration is called

What happens to the pitch of the sound when the length of the vibrating column is increased ?

The maximum displacement of a sound wave on either side of the mean position of its vibration is the measure of its

When a source of sound moves towards stationary observer,the wavelength of sound received by the observer

The grandparents and parents of two year old girl are playing with her in a room. A sound source produces a 28 kHz sound. Who in the room is most likely to hear the sound?

Questions based on paragraph : Sound is propagated in a material medium in the form of compression and rarefactions. One compression and one rarefaction together form one cycle of the sound wave. The number of cycles produced per second is called as frequency. A tuning fork is a two-pronged device which vibrates to produce sound when struck. The frequency of a tuning fork is decided by the dimensions of the prong and the material used for making the fork. When these sound waves reach ears of listener, his ear-drum vibrates. Accordingly specific signals are conveyed to the brain and the listener gets a sense of hearing sound. : When vibrations are produced, what physical properties of air are changed?