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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 pitch of sound depends on frequency.
The pitch of a flute is decreased by ................... length of air column.
Match the following
| column A | column B |
| (A) Amplitude | (1) frequency |
| (B) Frequency | (2) amplitude |
| (C) Loudness | (3)maximum displacement on either side |
| (D) Pitch | (4) presence of other frequencies |
| (E) Waveform | (5) 1/ time period |
The safe limit of loudness of audible sound is
How is loudness related to the amplitude of wave?
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
A man playing a flute is able to produce notes of different frequencies. If he closes the holes near his mouth, will the pitch of the note produced, increase or decrease? Give a reason.
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Name the factors which determine the loudness of a note.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
