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प्रश्न
Name three characteristics of a musical sound.
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उत्तर
Sounds can be distinguished from one another by the following three different characteristics:
- loudness
- pitch or shrillness, and
- quality or timbre
संबंधित प्रश्न
If the amplitude of vibration is large, sound is feeble.
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
State two conditions for an echo to take place
The frequency is measured in second.
The pitch of sound depends on frequency.
Decibel is the unit of pitch of a sound.
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 |
How is loudness related to the amplitude of wave?
Standing at a distance, how is it possible to detect the filling of bucket under a water tap by hearing the sound?
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.
What determines the pitch of a sound?
When a gun is fired at a distance, why is it that the flash is seen almost instantaneously while the sound is heard a little later?
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?
Two musical notes of the same pitch and loudness are played on a violin and a piano. Their waveforms are as shown in the figure below:
The diagram below shows three ways in which the string of an instrument can vibrate.
(i) Which of the above diagrams shows the fundamental note?
(ii) Which has the frequency 4 times that of the fundamental?
(iii) State the ratio between the frequency of the first and second.
What is acoustics?
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
