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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
Shrillness of a sound is determined by the ______ of vibration.
The ratio of the amplitudes of two waves is 3 : 4. What is the ratio of their loudness?
The frequency is measured in second.
The quality of a sound depends on the amplitude of wave.
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 |
When sound travels in form of a wave
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Standing at a distance, how is it possible to detect the filling of bucket under a water tap by hearing the sound?
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of frequencies?
Two waves of the same pitch have amplitudes in the ratio 1 : 3. What will be the ratio of their :
(i) intensities and
(ii) frequencies
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
Draw a diagram to show the waveforms of a pure note and a musical note, of the same pitch and same loudness.
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.
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.
If ______ of sound is decreased, its loudness also decreases.
The loudness of a sound depends on its pitch.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
