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Doppler's Effect

Quiz by Mudacir zia

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10 questions
Show answers
  • Q1
    Which of the following best describes the Doppler effect?
    A change in direction of a wave as perceived by an observer moving relative to the source of the wave.
    A change in amplitude of a wave as perceived by an observer moving relative to the source of the wave.
    A change in speed of a wave as perceived by an observer moving relative to the source of the wave.
    A change in frequency or wavelength of a wave as perceived by an observer moving relative to the source of the wave.
    30s
  • Q2
    Which of the following statements best describes the Doppler effect for light?
    A change in the color of light waves as perceived by an observer moving relative to the source of the light.
    A change in the intensity of light waves as perceived by an observer moving relative to the source of the light.
    A shift in the frequency of light waves as perceived by an observer moving relative to the source of the light.
    A change in the speed of light waves as perceived by an observer moving relative to the source of the light.
    30s
  • Q3
    Which of the following factors affect the magnitude of the Doppler shift?
    The distance between the source and the observer.
    The wavelength of the wave being observed.
    The amplitude of the wave being observed.
    The relative velocity between the source and the observer.
    30s
  • Q4
    Which of the following best explains the concept of the Doppler effect in relation to sound waves?
    A change in volume observed when a sound source or listener is in motion relative to each other.
    A change in speed observed when a sound source or listener is in motion relative to each other.
    A change in timbre observed when a sound source or listener is in motion relative to each other.
    A change in pitch observed when a sound source or listener is in motion relative to each other.
    30s
  • Q5
    Which of the following best describes the mathematical equation used to calculate the observed frequency in the Doppler effect?
    f' = f * (v - v₀) / (v + vₛ)
    f' = f * (v + v₀) / (v + vₛ)
    f' = f * (v + v₀) / (v - vₛ)
    f' = f * (v - v₀) / (v - vₛ)
    30s
  • Q6
    Which of the following is an example of the Doppler effect in astronomy?
    Formation of auroras in Earth's atmosphere.
    Redshift of light from distant galaxies.
    Change in the size of stars as perceived from Earth.
    Flickering of stars due to atmospheric turbulence.
    30s
  • Q7
    Which of the following statements best describes the Doppler effect?
    A change in frequency or wavelength of a wave as perceived by an observer due to relative motion between the source and the observer.
    A change in temperature of a wave as perceived by an observer moving relative to the source of the wave.
    A change in speed of a wave as perceived by an observer due to atmospheric conditions.
    A change in amplitude of a wave as perceived by an observer moving relative to the source of the wave.
    30s
  • Q8
    Which of the following best explains the concept of the Doppler effect in relation to electromagnetic waves?
    A change in the color of electromagnetic waves as observed due to the motion of the source or observer.
    A change in the speed of electromagnetic waves as observed due to the motion of the source or observer.
    A change in the amplitude of electromagnetic waves as observed due to the motion of the source or observer.
    A shift in the frequency or wavelength of electromagnetic waves as observed due to the motion of the source or observer.
    30s
  • Q9
    How does the Doppler effect affect the perception of pitch in sound waves?
    The perceived pitch remains constant regardless of the motion of the source or observer.
    The perceived pitch increases when the source of sound moves towards the observer and decreases when the source moves away from the observer.
    The perceived pitch decreases when the source of sound moves towards the observer and increases when the source moves away from the observer.
    The perceived pitch is unrelated to the motion of the source or observer.
    30s
  • Q10
    Which of the following is an example of the Doppler effect in everyday life?
    The change in pitch of a car horn as it passes by.
    The change in volume of a car engine as it accelerates.
    The change in color of a moving object as perceived by an observer.
    The change in temperature of a liquid as it is heated.
    30s

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