Physics GK 16 - Sound Waves

1. What do we call the distance between two consecutive compressions of a sound wave?
[A] Wave number
[B] Frequency
[C] Wavelength
[D] Amplitude

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2. In which of the following the sound cannot travel?
[A] Solids
[B] Liquids
[C] Gases
[D] Vacuum

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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

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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

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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

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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

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7. What is the measure of the response of the ear to the sound known as?
[A] Pitch
[B] Intensity
[C] Loudness
[D] Amplitude

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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

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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

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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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