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प्रश्न
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
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उत्तर १
उत्तर २
Because their waveforms are different, yes, their quality is different.
संबंधित प्रश्न
Name the factor that determines Loudness of the sound heard.
The ratio of the amplitude of two waves is 3:4. What is the ratio of their Frequencies?
State one important property of waves used for echo depth sounding.
The quality of a sound depends on the amplitude of wave.
The pitch of a stringed instrument is increased by .................. tension in string.
A tuning fork produces sound of ................... frequency.
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 |
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Figure shows four waves A, B, C, and D
Name the wave which shows
(a) a note from a musical instrument,
(b) a soft note
(c) a shrill note.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
If the amplitude of a wave is doubled, what will be the effect on its loudness?
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
The frequencies of notes given by flute, guitar and trumpet are respectively 400 Hz, 200 Hz and 500 Hz. Which one of these has the highest pitch?
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
The loudness of a sound depends on its pitch.
