blueshifts

Under What Condition Doppler Effect Is Called Red Shift And Blue Shift?

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Under What Condition Doppler Effect Is Called Red Shift And Blue Shift? For visible light, the bluer part of the spectrum has shorter wavelengths, and the redder part of the spectrum has longer wavelengths. Thus, the Doppler effect for light is called a ‘blueshift’ if the light source is coming toward an observer, and a