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due to relativistic effects such as time dilation, an observer in either object (an observer in the same inertial frame of reference) will see the other object moving at the speed of light

see http://math.ucr.edu/home/baez/physics/Relativity/SR/velocity.html for the mathematics behind it

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What is blueshift?

Blueshift is a phenomenon in which the wavelengths of light emitted by an object moving towards an observer are compressed, causing the light to appear shifted towards the blue end of the spectrum. This effect is a result of the Doppler effect and is commonly observed in astronomy when analyzing the motion of astronomical objects.


Where did red and blue shift occur?

Redshift and blueshift occur in astronomy when the wavelength of light from an object is stretched (redshift) or compressed (blueshift) due to the Doppler effect. Redshift is seen in objects moving away from us (e.g., galaxies in the universe expanding), while blueshift occurs in objects moving towards us (e.g., stars in our own galaxy).


If a galaxy is moving towards the earth what direction does its spectrum move?

If a galaxy is moving towards the Earth, its spectrum will be blueshifted. This means that the wavelengths of its emitted light are compressed, resulting in a shift towards the blue end of the spectrum.


What is the color of the shift in the laser light if a helicopter is moving toward you at its fastest speed?

If a helicopter is moving toward you at its fastest speed, the color shift in the laser light would be towards the blue end of the spectrum. This is known as a "blueshift" and occurs when the source of light is moving towards the observer, causing the light waves to be compressed and appear more blue.


What is the word for a Plant that grows towards the light?

phototropic (details from another answer) movement of or growth of plant in response to external stimulus. e.g. growth of root towards gravity - geotropism growth of shoot towards the light - phototropism hydrotropism is exhibited by lengthening of roots towards water source and finally, thigmotropism is growth towards solid objects -support by climbers

Related Questions

This is the change in color on the spectrograph as objects move toward or away from objects?

This phenomenon is known as the Doppler effect, where the frequency of light waves emitted by a moving object appears shifted depending on whether the object is moving towards or away from the observer. This shift in frequency causes a change in color on the spectrograph, with objects moving towards us appearing blueshifted (shifted towards the blue end of the spectrum) and objects moving away appearing redshifted (shifted towards the red end of the spectrum).


What can you see in space that is like Doppler effect?

In space, you can observe the Doppler effect in the form of redshift and blueshift of light from celestial objects. Redshift occurs when an object is moving away from Earth, causing its light to shift towards the red end of the spectrum, while blueshift occurs when an object is moving towards Earth, causing its light to shift towards the blue end of the spectrum. These shifts provide important information about the motion and speed of objects in space.


What is the Doppler effect observed when two moving objects approach each other?

The Doppler effect observed when two moving objects approach each other is an increase in the frequency of the sound waves or light waves between the objects. This causes the pitch of the sound to appear higher and the color of the light to appear shifted towards the blue end of the spectrum.


What do you call light rays which are moving towards each other?

Converging light rays are light rays that are moving towards each other and eventually meet at a single point.


What According to the Doppler effect objects moving away from Earth would have a?

According to the Doppler effect, objects moving away from Earth would have a redshifted spectral line. This means that the wavelength of the light they emit would be stretched, causing it to shift towards the red end of the spectrum.


How do you make a shadow biger?

Moving the object towards the source of light


How fast is the light from the star moving towards the earth?

47km/h


Objects that are moving away from us give off what light and objects that aremoving toward us gives what light?

Due to the doppler effect, objects moving toward us will be slightly more red than what they actually are, and objects moving away will be slightly more blue. Think of it like a siren coming toward you and moving away from you. If it is moving toward you, it will be slightly higher than what it really sounds like. If it is moving away it will have a slightly lower pitch.


When the wavelength of spectral lines emitted from an object decreases which end of the visible light spectrum does it move toward and what is the objects motion relative to earth?

When the wavelength of spectral lines emitted from an object decreases, it moves towards the violet end of the visible light spectrum. This is known as a blueshift, indicating that the object emitting the light is moving towards Earth.


What is blueshift?

Blueshift is a phenomenon in which the wavelengths of light emitted by an object moving towards an observer are compressed, causing the light to appear shifted towards the blue end of the spectrum. This effect is a result of the Doppler effect and is commonly observed in astronomy when analyzing the motion of astronomical objects.


This refers to the shortening of a transmitted signal wavelength and an increase in its frequency moving closer to the blue end of the spectrum?

This phenomenon is known as blueshift. It occurs when an object is moving towards the observer, causing the light waves to be compressed, resulting in a shorter wavelength and higher frequency, shifting towards the blue end of the spectrum. Blueshift is commonly observed in astronomy as an indicator of objects moving closer to Earth.


What does a shift toward the blue end of the spectrum mean?

A shift toward the blue end of the spectrum means that the light being observed has a higher frequency and shorter wavelength compared to light at the red end of the spectrum. This shift is known as "blue shift" and is commonly seen in scenarios where the light source is moving closer to the observer, such as with objects moving towards Earth in the universe.