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For the Doppler effect to occur the measured object must be in motion (radial velocity) relative to the emitter of a wave.
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∙ 13y ago
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The changing pitch of a police cars siren as it moves by you is an example of what?
The Doppler effect
How is the Doppler effect on light waves analogous to the apparent change in pich of a passing train whistle?
When the train gets close to you the sound wave are compressed making a higher pitch noise and as the train passes the sound waves become lengthened. That is the doppler effect in a nutshell. Now just compare it to how the doppler effect changes light waves.
Why would a passing race car display more Doppler effect than a passing police siren?
The amount of Doppler shift depends on speed - the faster vehicle will show more Doppler shift.
What conditions would have to be met in order for an ambulance with its siren on not to exhibit the Doppler effect when it passes you?
As far as I know, there will always be a Doppler effect when there is relative movement between the object that emits sound, and the observer (i.e. you, who are listening to the sound).
What is the name of the Austrian physicist who gave his name to a frequency variation effect?
Christian Doppler
Does Doppler effect occur for all types of waves?
yes
The change in the Doppler effect causes what not to occur with it?
The speed of transmission.
What is the change in frequency of a sound due to motion of the source?
The change in frequency is caused by the Doppler Effect
Does the Doppler Effect occur when both the source and observer are moving at the same velocity?
No. There has to be a relative velocity.
Is true of the Doppler effect?
the Doppler effect involves moving objectsthe Doppler effect involves moving objects
What is the Doppler effect on sound?
The Doppler effect is a phenomenon observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for the observer and the source are approaching and an apparent downward shift in frequency when the observer and the source is receding. The Doppler effect can be observed to occur with all types of waves - most notably water waves, sound waves, and light waves.
What did Christian Doppler do?
He discoverd the Doppler effect
A detected apparent change in the pitch caused by the motion of a sound source or of an observer is called?
The Doppler effect.The Doppler effect.The Doppler effect.The Doppler effect.
Does the Doppler effect occur when only some types of waves or all types of waves?
It is typical of all waves.
Does the Doppler effect occur for only some types of waves or all types of waves?
All types of waves.
Why big bang theory is presented?
It is quite clear, from the Doppler effect, that the Universe is expanding.It is quite clear, from the Doppler effect, that the Universe is expanding.It is quite clear, from the Doppler effect, that the Universe is expanding.It is quite clear, from the Doppler effect, that the Universe is expanding.
Who discovered the Doppler effect?
Christian Doppler did not invent Doppler Radar. He described what is now known as the Doppler effect in 1842 in Austria. It is used to describe the behavior of waves (such as light or sound) that are emitted by a moving object. Doppler radar, which utilizes the Doppler effect, was developed in the United States during World War II.
