The number of vibrations per second is called:
The unit of frequency is
The normal hearing range for humans is
The minimum distance between a source and a reflecting surface to hear an echo is:
The phenomenon of the bending of sound waves around obstacles is known as:
The speed of sound is maximum in:
In which medium does sound travel the fastest?
The part of the ear that amplifies sound vibrations is called the:
The speed of sound in air is approximately:
Sound will not travel through .
The ….............. receives the vibrations coming from the membrane and converts them into electrical signals which are sent to the brain through the nerve
The velocity of sound is inversely proportional to the .
Which of the following is not a characteristic of a sound wave?
Which of the following is required for the propagation of sound?
….... are used in sonography.
Which of the following is a musical instrument that produces sound by vibrating strings?
The quality of sound that enables us to distinguish between two sounds of the same pitch and loudness is called:
An example of a mechanical wave is:
The phenomenon of persistence of sound due to multiple reflections is called:
The part of the ear responsible for maintaining balance is the:
Which type of wave does not require a medium for propagation?
What type of wave is sound?
The persistence of sound after the source has stopped is known as:
SI unit of is Hertz (Hz).
Sound waves with frequency greater than 20 kHz are called .
The loudness of a sound depends upon
The distance between two consecutive compressions or rarefactions is called:
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