Question

In discussing Doppler effect, we use the word apparent frequency". Does it mean that the frequency of the sound is still that of the source and it is some physiological phenomenon in the listener's ear that gives rise to Doppler effect? Think for the observer approaching the source and for the source approaching the observer."

Answer 1

Frequency Changes with Distance

Explanation:

At any source, the frequency of Sound is not changeable.

• When there is a motion in relation to other than (One called as Source and other Observer), then what all frequency was taken by the Observer can be called as Apparent Frequency.

• The time between both ends decreases, in case the observer is reaching to source and he can have the sound heard but at very high frequency as compared when he was a standing position.

• So, we will be able to see that the relative motion brings or makes the source come near observer than the II point of production is closer to the observer.

• This shows that both sudden points with equal phase come to the observer in less time as compared to when getting started or didn't moved.

hence, it makes the sound to reach with higher frequency to the observer in order to show that effect called a Doppler effect.