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kjamha
- 98
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If a star races toward Earth the emitted light will be blue shifted. If the violet light produced from the star has a wavelength of 400 nm and it is blue shifted to 1 mn, does this light now exist as x-rays (on earth)?
The Doppler effect on light is a phenomenon that describes the change in wavelength of light due to the relative motion between the source of light and the observer. This effect is similar to the well-known Doppler effect that occurs with sound waves, but it is applied to light waves instead.
The Doppler effect on light occurs when there is a relative motion between the source of light and the observer. If the source of light is moving towards the observer, the wavelength of light appears shorter and the light is seen as blue-shifted. If the source is moving away from the observer, the wavelength appears longer and the light is seen as red-shifted.
The magnitude of the Doppler effect on light is affected by the speed of the source of light, the speed of the observer, and the angle at which the light is emitted or received. The closer the source and the observer are to each other, and the higher their relative speeds, the greater the effect will be.
The Doppler effect on light is used in astronomy to determine the relative motion of celestial objects. By analyzing the redshift or blueshift of light from these objects, scientists can calculate their velocities and infer information about their distance, size, and composition.
The main difference between the Doppler effect on light and on sound is the medium through which the waves travel. Sound waves require a physical medium to travel, such as air or water, while light waves can travel through a vacuum. Additionally, the speed of light is much greater than the speed of sound, resulting in different magnitudes of the Doppler effect for each.