Scientists observe blueshift in certain stars because "light wave frequencies increase as an object moves toward the observer." This phenomenon occurs due to the Doppler effect, where the wavelength of light changes based on the relative motion of the source and the observer. When a star is moving toward us, the light waves compress, resulting in a shift toward the blue end of the spectrum, which indicates an increase in frequency.
Why do scientists observe blueshift in certain stars?(1 point)
Stars with lower temperatures emit more light waves at the blue end of the spectrum.
Stars with higher temperatures emit more light waves at the blue end of the spectrum.
Light wave frequencies increase as an object moves toward the observer.
Light wave frequencies decrease as an object moves toward the observer.
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