When you speak to your friend, which of the following parameters have a unique value in the sound produced?
(a) Frequency
(b) Wavelength
(c) Amplitude
(d) Wave velocity
Answers
The correct option is (d) "wave velocity".
Explanation:
Sound wave is a type of longitudinal wave. It is described in the form of compression and rarefaction. When you speak to your friend, the sound have different wavelength, frequency and amplitudes. The frequency and the wavelength changes with the pitch of the sound and the amplitude vary with the loudness. If the temperature remains the same, the velocity of wave will have a unique value in the sound produced. Hence, the correct option is (d) "wave velocity".
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Topic : Sound wave
https://brainly.in/question/1128448
Answer:
Wave velocity
Explanation:
The given situation is you are speaking with a friend
When you are speaking with our friend both of you are in same medium, as wave velocity depends on medium the wave velocity has a unique value.
frequency depends on the thickness of vocal cord which may not be exactly same for both of you so frequency changes
as we know that at constant velocity wavelength is inversely proportional to frequency so that wave length also changes
Amplitude depends upon the energy of the source of sound wave so amplitude may also vary
Therefore option 'd' is correct
Important points of this question