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प्रश्न
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
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उत्तर
When a nail is hammered into a piece of wood, its length outside wood gradually decreases. As the length decreases, the frequency of vibrations increases and hence the pitch being directly proportional to the frequency also increases
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संबंधित प्रश्न
The ratio of the amplitude of two waves is 3:4. What is the ratio of their Frequencies?
In which units is the loudness of sound measured?
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 |
Name the unit in which the loudness of sound is expressed.
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
What determines the pitch of a sound?
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.
Name the factors which determine the quality of a note.
What is acoustics?
