The discussion centers on the Doppler effect as it relates to the speed of light and sound, exploring how the frequency and speed of waves are affected by the motion of the source relative to the observer. Participants examine the implications of redshift and blueshift in light, as well as analogous effects in sound.
Participants generally agree that the speed of light remains constant regardless of the motion of the source. However, there is ongoing debate about the implications of the Doppler effect for both light and sound, with some uncertainty about how these principles apply across different contexts.
The discussion does not resolve the nuances of how the Doppler effect is perceived in different media or the specific conditions under which the speed of sound is considered constant.
DaleSpam said:The frequency and the speed are related by ##v=f\lambda## where ##\lambda## is the wavelength. With light ##\lambda## changes as the reciprocal of ##f##, so ##v## remains constant.
Yes, the speed of sound depends on the properties of the air (temperature, density, velocity, etc.), not the speed of the emitter. Two different emitters, one stationary and one moving but otherwise identical, will produce sound waves at different frequencies and wavelengths, but the same speed.rushikesh said:So, this must be true even in case of sound. So, does the speed of sound also remain constant in such case?