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प्रश्न
Why is the loudness of sound heard by a plucked wire increased when mounted on a sound board?
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उत्तर १
A wire mounted on a soundboard is plucked, the surface area of vibrating air increases and sends forth a greater amount of energy, So the amplitude of vibration is large and louder is the sound
उत्तर २
The loudness of sound increases when a plucked wire is mounted on a soundboard because the soundboard has a larger surface area. It vibrates along with the wire, amplifies the sound through resonance, and pushes more air particles, producing a louder sound. This is why soundboards are used in instruments like guitars and pianos.
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संबंधित प्रश्न
Loudness is determined by the __________ of vibration.
When sound propagates in air, it does not carry energy with it.
The distance from one compression to nearest rarefaction is called wavelength.
Define the following term:
Frequency
Name three characteristics of a musical sound.
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
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.
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
