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प्रश्न
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
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उत्तर
As the water level in the pitcher increases, the length of the vibrating air column above the water surface decreases, and hence the frequency of the sound produced increases i.e., the sound gets shriller.
संबंधित प्रश्न
The time period of a wave is 2 s. Its frequency is ..........
When sound travels in form of a wave
The safe limit of loudness of audible sound is
The unit of loudness is _______.
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
How does the two sounds of same loudness and same pitch produced by different instruments differ? Draw diagrams to illustrate your answer.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
Draw a diagram to show the waveforms of a pure note and a musical note, of the same pitch and same loudness.
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
If ______ of sound is decreased, its loudness also decreases.
