Grade 12Mechanics
what is the doppler effect?
what is the doppler effect?
3 Answers
raju
Approved Tutor Answer10 Years agoThe 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.
KALYAN
The Apparent change in the frequency of sound when the source, the observer and the medium are in a relative motion is known as DOPPLER EFFECT
CONDITIONS OBSERVED IN DOPPLER EFFECT:
When the source of sound is in motion and the observer is at rest then the Doppler Effect is observed.
When the observer is in motion and the source at rest then the Doppler Effect is observed.
When the source and the observer are moving with unequal velocities then the Doppler Effect is observed.
When the source and the observer and intervening medium are in motion then the Doppler Effect is observed.
When the source of sound is in motion and the observer is at rest then the Doppler Effect is observed.
When the observer is in motion and the source at rest then the Doppler Effect is observed.
When the source and the observer are moving with unequal velocities then the Doppler Effect is observed.
When the source and the observer and intervening medium are in motion then the Doppler Effect is observed.
SAIMANIKANTA
apparent change in frequency
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