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    Doppler Effect

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    Maybe Daily Gaming
    The Doppler effect causes changes in the observed frequency of waves emitted by a moving source. It affects all types of waves including sound, light, and water waves. The Doppler effect results in higher observed frequencies when the source and observer are moving towards each other, and lower observed frequencies when they are moving away from each other. This phenomenon has been precisely formulated and can be used to calculate the observed frequency based on the actual frequency, velocity of the source, and relative motion between the source and observer.

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    Doppler Effect

    Uploaded by

    Maybe Daily Gaming
    11 views1 page
    The Doppler effect causes changes in the observed frequency of waves emitted by a moving source. It affects all types of waves including sound, light, and water waves. The Doppler effect results in higher observed frequencies when the source and observer are moving towards each other, and lower observed frequencies when they are moving away from each other. This phenomenon has been precisely formulated and can be used to calculate the observed frequency based on the actual frequency, velocity of the source, and relative motion between the source and observer.

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    Doppler effect

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    The Doppler effect causes changes in the observed frequency of waves emitted by a moving source. It affects all types of waves including sound, light, and water waves. The Doppler effect results in higher observed frequencies when the source and observer are moving towards each other, and lower observed frequencies when they are moving away from each other. This phenomenon has been precisely formulated and can be used to calculate the observed frequency based on the actual frequency, velocity of the source, and relative motion between the source and observer.

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    © All Rights Reserved
    Download as TXT, PDF, TXT or read online from Scribd
    Download as txt, pdf, or txt
    11 views1 page

    Doppler Effect

    Uploaded by

    Maybe Daily Gaming
    The Doppler effect causes changes in the observed frequency of waves emitted by a moving source. It affects all types of waves including sound, light, and water waves. The Doppler effect results in higher observed frequencies when the source and observer are moving towards each other, and lower observed frequencies when they are moving away from each other. This phenomenon has been precisely formulated and can be used to calculate the observed frequency based on the actual frequency, velocity of the source, and relative motion between the source and observer.

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    The Doppler effect affects all waves projected from a moving source resulting in

    frequency change for the receiver depending on the distance from the source (NASA
    c. 2020). A prominent example of this effect is, in the sound waves, a siren of a
    car is going by the receiver, it may notice the change in frequency of the siren;
    this effect is a cause of the Doppler effect. Scientists tested and experimented on
    the Doppler effect, the most prevalent being Christian Doppler (V Katsi, I Felekos,
    I Kallikazaros c. April-June 2013). This effect has precise formulas to calculate
    the frequency projected and receive for the movement of the receiver or indication
    of the source, each with 3 variations with the source going closer to the receiver
    or the source becoming farther away from the receiver and with them being
    stationary (LibreTexts c. n/a).

    This scientific effect affects sound, light and water types of waves, however, it
    may be a remnant of other types of waves. The Doppler effect on sound doesn’t
    change the frequency of the wave, it makes the wavelength shorted making pressure
    variate and for the human eardrum to receive a higher tone of sound than what is
    being projected (NASA c. 2020). Another example of the effect in practice is a boat
    on the water, if the boat is stationary, the boat will go up and down and the
    normal speed, however when the boat is moving actively towards the waves it will
    cause the boat to have more vertical movement and to be more rapid and varied
    (phys.uconn.edu c. n/a).

    In astronomy, this phenomenon is a significant principle towards redshift and


    blueshift in the movement of planets, however, it is not the only reason for
    redshift and blueshift. As planets and galaxies are constantly moving expanding or
    coming closer to the Earth we get the Doppler effect to affect the light being
    emitted from the planets/stars (Swinburne University of Technology c. n/a). During
    this process of light transmission when a light source is being forced away from
    the observer the effect of redshift will take place; this will cause a shift
    towards the red end of the visible spectrum of light in the electromagnetic waves.
    On the other hand, if the source is being pushed towards the observer an effect of
    blueshift will take place; as the waves will compress the frequency of waves will
    increase putting the electromagnetic waves more towards the blue end of the visible
    spectrum (byjus.com c. n/a).

    In sound waves, this effect works very similarly to light waves, however, it
    differs by tone and not frequency. As the wavelength shrinks and the frequency
    becomes higher the tone will change depending on if the object is closer or farther
    (NASA c. 2020). A common example of this effect in place is when a siren of a
    firetruck passes by, if the siren is stationary if you are the same distance from
    the siren as another person you will hear the same thing. If the truck is moving
    towards you and away from the other person you will hear a higher pitch than the
    other person that the truck is moving away from. All types of Doppler effects can
    be put into a formula to calculate the observed frequency: observed frequency =
    actual frequency x velocity of soundwaves ∓ velocity of the observer / velocity of
    soundwaves ± velocity of the source.

    - General formula for calculating observed frequencies as a result of the Doppler


    effect (byjus.com c. n/a).

    To sum up, the Doppler effect is a scientific phenomenon that is prominent in


    physics and waves. All types of waves can be affected by the Doppler effect, mostly
    water, sound and light waves that are affected. This effect affects observed
    frequencies projected by moving/stationary sources; by changing the wavelength. The
    original frequency is not changed however, the frequency from the source to the
    receiver is changed due to wavelength and the compression/expansion of the waves.

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