Advertisements
Advertisements
Question
Why is the loudness of sound heard by a plucked wire increased when mounted on a sound board?
Advertisements
Solution 1
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
Solution 2
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.
APPEARS IN
RELATED QUESTIONS
The lower the frequency of vibration, the higher is the pitch.
In which units is the loudness of sound measured?
The distance from one compression to nearest rarefaction is called wavelength.
Sound can not travel in
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
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?
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
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.
