Loudness
Trending Questions
If Stump Is Coded As Pqrjm, Then Pitch Is Coded As
By reducing the amplitude of a sound wave, its:
(a) pitch increases (b) loudness decreases
(c) loudness increases (d) pitch decreases.
Only the vibrating bodies can produce sound.
True
False
Comment on the statement 'loudness of sound is of a subjective nature, while intensity is of objective nature.'
- frequency
- energy
- wavelength
The bells of a temple are big in size. Why?
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their (i) loudness, and (ii) frequencies ?
Complete the following sentences :
(a) The pitch of sound increases if its frequency ......................................
(b) If the amplitude of a sound is halved, its loudness becomes ......................
How is loudness of sound related to the intensity of wave producing it ?
A and B represent the displacement-distance graphs for two sound waves when they pass through air. Find the ratio between their loudness.
fig A
fig B
3:4
4:3
16:9
9:16
(a) Which of the following quantity determines the loudness of a sound wave ?
(i) wavelength, (ii) frequency, and (c) amplitude.
(b) How is loudness related to the quantity mentioned above in part (a) ?
What factors decide the frequency of vibration of an air column?
Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound board?
What is the subjective property of sound related to its Intensity
Quality
Amplitude
Loudness
Pitch
The sketches I to IV in Fig. 7.26 show sound waves, all formed in the same time interval.
Which diagram shows
(i) a note from a musical instrument,
(ii) a soft (or feeble) note,
(iii) a bass (or low frequency) note.
What frequency changes do you observe when a water-bottle is filled under a tap?
The intensity of the sound keeps increasing as the amplitude of vibration keeps increasing
The pitch of the sound keeps decreasing as the length of the vibrating air column keeps decreasing
The pitch of the sound keeps decreasing as the length of the vibrating water column keeps decreasing
The pitch of the sound keeps increasing as the length of the vibrating air column keeps decreasing
The pitch of the sound keeps increasing as the length of the vibrating air column keeps increasing
State three factors which affect the loundess of a sound heard by a listener.
How can resonance frequency be reduced?
A thinner string produces a sound of a ______ pitch.
Calculate the ratio of intensity or loudness of 2 waves having amplitudes in the ratio 4: 9
4:9
9:4
1:1
16:81
2:3
Whats do you mean by intensity of sound?
How does the loudness of sound depend on its amplitude?
- Wavelength
- Amplitude
- Pitch
- Frequency
The physical quantity upon which the loudness of the sound depends :
pitch
intensity
amplitude
frequency
The SI unit of intensity of sound is
watt
watt per metersquare
watt per meter
joule per meter
joule per meter square
The sound produced by an object vibrating with a high frequency is ______.
A key of a mechanical piano is struck gently. The same key is then struck again, but much harder this time. In the second case:
The loudness of the sound detected remains the same but its pitch will be higher.
Both the loudness of the sound detected and its pitch will remain unaffected.
The sound detected will be louder and its pitch will be higher.
The sound detected will be louder and its pitch remains the same.
- Damped vibration
- Natural vibration
- Forced vibration
- None of the above
When a tuning fork, struck by a rubber pad is held over a length of the air column in a tube, it produces a loud sound for a fixed length of the air column.
State the unit for measuring loudness.
