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what is doppler effect?

what is doppler effect?

Grade:12th pass

11 Answers

Prabhakar ch
577 Points
5 years ago
Dear Manjunath
                            The Doppler effect (or Doppler shift) is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source. It is named after the Austrian physicist Christian Doppler, who proposed it in 1842 in Prague.
Gaddam Chethan
317 Points
5 years ago
Hello Manju
              Doppler effect:An apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.
mohan
216 Points
5 years ago
dear manju,......
    The Doppler effect is observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced ...
N JYOTHEESWAR
342 Points
5 years ago
Doppler effect is an   apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.this is called doppler effect.
sreekanth sree
125 Points
5 years ago
an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move towards (or away from) each other. The effect causes the sudden change in pitch noticeable in a passing siren, as well as the red shift seen by astronomers.
T.kumar
281 Points
5 years ago
doppler effect...an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move towards (or away from) each other. The effect causes the sudden change in pitch noticeable in a passing siren, as well as the red shift seen by astronomers.
Gowri sankar
292 Points
5 years ago
Hello manjunath,
                           Doppler effect means an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move towards (or away from) each other. The effect causes the sudden change in pitch noticeable in a passing siren, as well as the red shift seen by astronomers.
NAVEENKUMAR NAGIPOGU
108 Points
5 years ago
dear doppler effect is defined as the apparent freequency heard by the listener due to the ralative motion between source and listener.
raj
384 Points
5 years ago
hallo manjunath
doppler effect is defined as the apparent freequency heard by the listener due to the ralative motion between source and listener.
T Dileep
100 Points
5 years ago
hai manju,an increase or decrease in the frequncy of sound light,or other waves as the source and observer move towards each other.the effect causes sudden change in pitch noticeable in a passing siren.
G.VENKATESH
106 Points
5 years ago
Doppler effect. noun. A change in the observed frequency of a wave, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.

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