Physics GK 16 - Sound Waves

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1).
What do we call the distance between two consecutive compressions of a sound wave?
2).
In which of the following the sound cannot travel?
3).
What is the time taken by two consecutive compressions or rarefactions to cross a fixed point in a sound wave known as?
4).
What is the relationship between the frequency and the pitch of a sound wave?
5).
What do we call the magnitude of the maximum disturbance in the medium on either side of the mean value called as?
6).
Which of the following represents the speed of a sound wave?
7).
What is the measure of the response of the ear to the sound known as?
8).
What is the effect of increase of temperature on the speed of sound?
9).
What is supersonic speed?
10).
What is the speed of sound in air at 0 ºC?
11).
In which of the following mediums will sound travel with greater speed at 0° C?
12).
Which of the following are generally used to reduce reverberation in an auditorium as sound absorbents?
13).
What is the audible range of sound for human beings?
14).
What are infrasonic sounds?
15).
What are ultrasonic sounds?
16).
Which of the following sounds is produced by earthquakes before the main shock waves?
17).
Which of the following sound waves are used in echocardiography?
18).
Which of the following can be measured using SONAR?
19).
What is the effect on apparent frequency when the distance between the source of the sound and listener is decreased?
20).
What will be the apparent frequency when the both source of the sound and listener move in the same direction with same velocity?
21).
In which of the following cases Doppler effect is not seen?
22).
Which of the following conditions will not show any Doppler effect?
23).
Which of the following is the cause of echo?
24).
Which of these parts of the ear responds to sound waves like a microphone’s diaphragm?
25).
Which of the following is another unit of frequency?
26).
What is the relationship between the velocity of sound and the pressure of gas when the temperature remains constant?
27).
Which of the following is correct about the speed of the sound, at same temperature?
28).
Which of the following is correct about a Sound wave?
29).
Which of the following is correct about the properties of Sound waves?
30).
Which of the following is correct about compressions in sound wave?
1. What do we call the distance between two consecutive compressions of a sound wave?
[A] Wave number
[B] Frequency
[C] Wavelength
[D] Amplitude
2. In which of the following the sound cannot travel?
[A] Solids
[B] Liquids
[C] Gases
[D] Vacuum
3. What is the time taken by two consecutive compressions or rarefactions to cross a fixed point in a sound wave known as?
[A] Amplitude
[B] Time period
[C] Angular Frequency
[D] Angular Displacement
4. What is the relationship between the frequency and the pitch of a sound wave?
[A] Higher the frequency, higher the pitch
[B] Lower the frequency, higher the pitch
[C] Pitch is not dependant on the frequency
[D] None of the above
5. What do we call the magnitude of the maximum disturbance in the medium on either side of the mean value called as?
[A] Frequency
[B] Angular Displacement
[C] Amplitude
[D] Wave number
6. Which of the following represents the speed of a sound wave?
[A] wavelength x frequency
[B] 2 x wavelength x frequency
[C] wavelength/frequency
[D] (wavelength x frequency)/2
7. What is the measure of the response of the ear to the sound known as?
[A] Pitch
[B] Intensity
[C] Loudness
[D] Amplitude
8. What is the effect of increase of temperature on the speed of sound?
[A] it increases
[B] it decreases
[C] it may or may not increase
[D] No effect
9. What is supersonic speed?
[A] When the speed of any object exceeds the speed of sound
[B] When the speed of any object exceeds the speed of light
[C] When the speed of any object exceeds 10000 m/s
[D] None of the above
10. What is the speed of sound in air at 0 ºC?
[A] 3 x 108 m/s
[B] 344 m/s
[C] 441m/s
[D] 331 m/s
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