Why do scientists observe blueshift in certain stars?(1 point)

Responses

Light wave frequencies increase as an object moves toward the observer.
Light wave frequencies increase as an object moves toward the observer.

Light wave frequencies decrease as an object moves toward the observer.
Light wave frequencies decrease as an object moves toward the observer.

Stars with higher 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.

Stars with lower temperatures emit more light waves at the blue end of the spectrum.

1 answer

The correct response is:

Light wave frequencies increase as an object moves toward the observer.

Blueshift occurs when a light source moves closer to an observer, causing the wavelengths of light to compress and shift toward the blue end of the spectrum. This is due to the Doppler effect.

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