Question

Explain your interpretation and understanding of The Doppler Effect.

Answer 1

When sound or radio waves travels from two objects, the frequency and wavelength can seem to be changed if one or both of them are moving relative to each other, This effect of change in frequency and wavelength is called the Doppler effect.

The Doppler effect causes the received frequency of a source (how it is perceived when it gets to its destination) to differ from the sent frequency if there is motion that is increasing or decreasing the distance between the source and the receiver. In case of sound waves, doppler effect causes high or low pitch sound effect. In case of radio or electromagnetic waves, wavelength shift occurs due to which change in color of light is perceived by observer. When the distance between the source and receiver of electromagnetic waves remains constant, the frequency waves is the same in both places. When the distance between the source and receiver of electromagnetic waves is increasing, the frequency of the received wave forms is lower than the frequency of the source wave form. When the distance is decreasing, the frequency of the received wave form will be higher than the source wave form.