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प्रश्न
What does the intensity of sound depend upon?
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उत्तर
The intensity of sound is directly proportional to the square of the amplitude of vibration. If the amplitude is increased, the sound becomes more intense (louder).
Mathematically: I ∝ A2 (where I is intensity and A is amplitude).
In addition to amplitude, other factors that affect the perceived loudness of sound include:
- Distance from the Source: The intensity of sound decreases as you move further away from the source of the sound.
- Surface Area: A larger vibrating surface area generally produces a sound with greater intensity.
संबंधित प्रश्न
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.
In a longitudinal wave, compression and rarefaction are formed.
The unit of loudness is _______.
What is longitudinal wave?
Figure shows two jars A and B containing water up to different heights. Which will produce sound of higher pitch when air is blown on them?
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?
Two identical guitars are played by two persons to give notes of the same pitch. Will they differ in quality? Give a reason for your answer.
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
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.
