Question

High frequency gives which kind of sound?
A. Low pitched sound
B. Flat sound
C. High pitched sound
D. None of the above.

Answer 1

Frequency of sound wave refers to how often the particles of the medium vibrate when a sound wave passes through the medium. Pitch of the sound wave is directly related to frequency. The sensation of sound frequency is referred to as pitch.

Complete step by step answer:
A sound wave is produced by a source which vibrates the medium through which the wave travels. So for transfer of sound waves a medium is required. The source object could be a vocal cord of a person, a vibrating string, a tuning fork. Regardless of source object the particles of the medium through which the sound moves is vibrating in a back and forth motion at a given frequency. The frequency of a wave refers to how often the particles of the medium vibrate when a sound wave passes through the medium. Quantitatively frequency is defined as the number of vibrations per unit time. The unit of Frequency is Hertz.
As a sound wave passes through a medium every particle of the medium vibrates at the same frequency. This is because every particle vibrates due to the motion of its nearest neighbour. If the first particle of the medium begins vibrating at 500 Hz(say) due to which a second particle begins to vibrate at the same frequency of 500 Hz. When the second particle begins vibrating at 500 Hz and thus sets the third particle of the medium into vibrational motion at 500 Hz. The process continues throughout the medium. Each particle vibrates at the same frequency. And the frequency at which every particle vibrates is equal to the frequency of the original source of the sound wave.
The way we sense the frequency of a sound wave is known as pitch of a sound. A high frequency sound creates a high pitch sound and a low frequency sound wave is referred to the low pitch sound.

So, the correct answer is “Option C”.

Note: The ability of human beings to sound wave’s pitch is associated with the frequency of the sound wave which will be heard on the ear. Because sound waves when traveling through air are longitudinal waves which will produce high-pressure and low-pressure disturbances of the particles of the air at a given frequency. The human ear has an ability to detect such frequencies and associate them with the pitch of the sound. But pitch is not the only property of a sound wave detectable by the human ear. Intensity of sound is also perceivable by the human ear.