The fluctuations in the frequency of a sound source are called the Doppler effect. This phenomenon occurs when there is relative motion between the sound source and the observer, causing the observed frequency to increase as they approach each other ...
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When we hear people talking in the same room without seeing them, it is due to diffraction. Sound waves bend around obstacles and spread out after passing through openings, allowing us to hear voices even when the source is not ...
Silent zones where ships do not hear lighthouse sirens are created due to interference. When sound waves from the siren meet at points where they are out of phase, destructive interference occurs, canceling the sound waves and resulting in areas ...
The maximum limit of sound intensity in decibels above which a person cannot hear is 95 dB. This threshold represents the level at which sound becomes too faint for the human ear to detect.
Polarization is not produced by sound waves in air. Sound waves are longitudinal waves that do not exhibit polarization, which is a property of transverse waves.
If the same note is played on sitar and flute, the sound produced by them can be distinguished due to the difference in sound quality. Each instrument has a unique timbre or quality of sound caused by the overtones and ...
Women’s voices are thinner (shrill) compared to men’s voices primarily because the frequency is higher. Higher frequency results in a higher pitch, characteristic of women’s voices. This is due to women having shorter and thinner vocal cords that vibrate at ...
The voice of a small child seems more pleasing than the voice of a young man because the pitch of a child’s voice is higher. Higher pitch is often perceived as more pleasant and less harsh compared to the lower ...
The voice of women is generally sharper than that of men because it has a higher pitch. Higher pitch results from higher frequency sound waves, which produce the characteristic sharpness of women’s voices.
The method used in cleaning the internal parts of planes is Ultrasonic wave. Ultrasonic cleaning involves using high-frequency sound waves to agitate a liquid cleaning solution. This process efficiently removes contaminants from intricate parts of aircraft engines and components without ...