Practice test

Sound and acoustics - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Decibel is used to measure
    1. Haemoglobin in blood
    2. Sugar in urine
    3. Sound in atmosphere
    4. Particles in air
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  2. Question 2

    Which of the following does not have any effect on velocity of sound?
    1. Pressure
    2. Temperature
    3. Humidity
    4. Density
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  3. Question 3

    Sound cannot pass through–
    1. Water
    2. Vacuum
    3. Air
    4. Steel
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  4. Question 4

    In which of the following speed of sound is maximum?
    1. Air
    2. Vacuum
    3. Steel
    4. Water
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  5. Question 5

    In which of the following medium speed of sound will be comparatively high?
    1. Carbon dioxide
    2. Steam
    3. Water
    4. Iron Rod
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  6. Question 6

    Pitch of a sound depends upon its
    1. Frequency
    2. Intensity
    3. Velocity
    4. Amplitude
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  7. Question 7

    Which of the following character of sound wave change with the change in temperature in atmosphere.
    1. Amplitude
    2. Frequency
    3. Wavelength
    4. Intensity
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  8. Question 8

    Which phenomenon do bat or dolphins used to find prey, predators or obstacles?
    1. Refraction of sound
    2. Formation of beats
    3. Echolocation
    4. Scattering of sound
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  9. Question 9

    When a vibrating tuning fork is placed on table, a loud sound is heard. This is due to
    1. Reflection
    2. Refraction
    3. Damped vibration
    4. Forced vibration
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  10. Question 10

    Sound waves do not exhibit the phenomenon of
    1. Polarisation
    2. Refraction
    3. Diffraction
    4. Interference
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  11. Question 11

    Sound waves cannot be polarised because they
    1. Require a material medium for propagation
    2. Are longitudinal
    3. Are transverse
    4. Have low velocity
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  12. Question 12

    The velocity of sound in a gas depends on
    1. Wavelength only
    2. Amplitude and frequency
    3. Density and elasticity of gas
    4. Intensity only
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  13. Question 13

    When we hear a sound, we can identify its source from
    1. The amplitude of sound
    2. The intensity of sound
    3. Wavelength of sound
    4. The overtones present in the sound
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  14. Question 14

    Which of the following type of waves is different from others?
    1. Sound waves
    2. Radio waves
    3. X-rays
    4. Light waves
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  15. Question 15

    Quality is that sensation of sound which is felt by our ears by virtue of
    1. Frequency of sound wave
    2. Waveform of sound wave
    3. Amplitude of sound wave
    4. None of these
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  16. Question 16

    Beats occur because of
    1. Doppler effect
    2. Reflection
    3. Interference
    4. Refraction
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  17. Question 17

    The loudness of sound depends upon
    1. Velocity
    2. Pitch
    3. Wavelength
    4. Amplitude
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  18. Question 18

    Pitch is sensation which depends upon
    1. Frequency
    2. Amplitude
    3. Wavelength
    4. Velocity
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  19. Question 19

    The quality of sound produced by an instrument depends on the
    1. Frequency
    2. Number of overtones
    3. Intensity
    4. None of these
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  20. Question 20

    Sound waves of wavelength greater than that of audible sound are called.
    1. Ultrasonic wave
    2. Infrasonic waves
    3. Sonic wave
    4. Seismic waves
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