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प्रश्न
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उत्तर
Pitch of a musical noted depends on its wavelength or frequency. Higher the frequency, higher the pitch.
Loudness depends upon the amplitude of the wave. Loudness is directly proportional to the square of amplitude.
Quality of a musical depends on the wave form.
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संबंधित प्रश्न
The lower the frequency of vibration, the higher is the pitch.
A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.
The distance from one compression to nearest rarefaction is called wavelength.
Name three characteristics of a musical sound.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
How does the two sounds of same loudness and same pitch produced by different instruments differ? Draw diagrams to illustrate your answer.
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.
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.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
