Describe the Doppler Effect in details with illustrations.?

Answer 1

The Doppler effect is a change in frequency due to relative velocity of the emission source with respect to the observer. The ref. explains how it works for sound and for light. The two are different because the speed of sound is constant only in the medium through which it travels while the speed of light is constant for both source and observer. However in both cases the wavelength seen by the observer changes.

Answer 2

The Doppler result's the substitute in pitch a noise-making merchandise makes because it nears you and then passes you. Doppler used a custom whistle to illustrate. The pitch of the whistle transformations because it nears you, and transformations because it passes you and gets farther away. that's because of the fact sound waves crawl. So slowly that once a custom is vacationing at 60 mph and drawing close you, the sound waves are shifting on the value of sound plus 60 mph. Then after the passage of the practice, the sound waves are shifting on the value of sound minus 60 mph. This distorts the pitch of the whistle. This grow to affix Doppler's data that sound travels in waves. humorous difficulty approximately easy, nonetheless. The practice's headlight beam is vacationing on the value of sunshine irregardless of the value of the practice! despite if the practice is going in opposite, the easy beam continues to be vacationing on the value of sunshine. no longer the value of sunshine minus 60 mph, the value of sunshine continually! go determine.