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lnsanity
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I want to know if the red or blue shift apply if I am moving away or toward a light beam and if it still apply if I am moving the light beam source with me forward or backward.
The Doppler shifts depend only on the relative velocity between source and observer.lnsanity said:I want to know if the red or blue shift apply if I am moving away or toward a light beam and if it still apply if I am moving the light beam source with me forward or backward.
clem said:The Doppler shifts depend only on the relative velocity between source and observer.
If there is no relative velocity, there is no Doppler shift.lnsanity said:So that mean it apply when I am moving away or toward a light beam but does not apply when I am moving the light beam source with me forward or backward right ?
Red and blue shift refer to the change in the wavelength of light emitted by a source as it moves towards or away from an observer. Red shift occurs when the source is moving away, causing the light waves to stretch and appear more redshifted. Blue shift occurs when the source is moving closer, causing the light waves to compress and appear more blueshifted.
Red shift and blue shift can be measured using the Doppler effect, which is the change in frequency of a wave due to the relative motion between the source and observer. This can be observed through the change in the wavelength of light emitted by the source.
The main cause of red shift or blue shift is the relative motion between the source and observer. This can occur due to the source moving towards or away from the observer, or due to the expansion of the universe in the case of red shift for distant sources.
Red shift and blue shift are directly related to the speed of light. As the source moves towards or away from the observer, the speed of light remains constant, but the wavelength changes, resulting in the observed shift in color.
Red shift and blue shift can provide valuable information about the motion of objects in the universe and the expansion of the universe. They can also help determine the distance of objects and the rate of expansion of the universe, providing insight into the evolution of the universe.