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Question
The phenomenon by which stars recedes from each other is explained by
The phenomenon by which stars recedes from each other is explained by
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Solution
The correct option is D red shift
When an object moves away from us, its light waves are stretched into lower frequencies or longer wavelengths, and we say that the light is redshifted. It also explain the expanding nature of universe. Doppler effect in light explains the phenomenon of receding of stars and approaching of star by red shift and blue shift respectively.
When an object moves away from us, its light waves are stretched into lower frequencies or longer wavelengths, and we say that the light is redshifted. It also explain the expanding nature of universe.
Doppler effect in light explains the phenomenon of receding of stars and approaching of star by red shift and blue shift respectively.
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emitted by hydrogen in a star is found to be red shifted by 15 Å.
Estimate the speed with which the star is receding from the Earth.