with respect to the same observer, a faster moving train away from an observer would produce a doppler shift. a. greater positive b. greater negative c. lesser positive d. lesser negative e. the same

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20-12-2022
Physics

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with respect to the same observer, a faster moving train away from an observer would produce a doppler shift. a. greater positive b. greater negative c. lesser positive d. lesser negative e. the same

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SamuelSundar SamuelSundar · Answer 1 · 2022-12-30T02:50:19-05:00

Source moving away from observer. Notice that in both cases, moving observer and moving source, if the source and observer are moving together, the frequency goes up. If they are moving apart, the frequency goes down.

What is Doppler effect ?

When a wave source and its observer move in close proximity to one another, the phenomenon known as the Doppler Effect occurs. Doppler, Christian Johann's discovery, is the mechanism by which starlight increases or decreases depending on the relative motion of the star.

The apparent change in wave frequency caused by a wave source's motion is known as the Doppler effect. When the wave source is moving forward or receding, the apparent frequency changes, moving upward when the wave source is moving forward. We notice a change in pitch in the sound of a passing siren, which the Doppler effect explains.

Learn more about Doppler effect here:

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