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

Question

Stars with higher temperatures emit more light waves at the blue end of the
spectrum
Light wave frequencies decrease as an object moves toward the observer.
Light wave frequencies increase as an object moves toward the observer.
Stars with lower temperatures emit more light waves at the blue end of the
.spectrum

Answer 1

Scientists observe blueshift in certain stars because light wave frequencies increase as an object moves toward the observer. This phenomenon is a result of the Doppler effect, where the wavelength of light from an object moving towards an observer is compressed, leading to an increase in frequency and a shift towards the blue end of the spectrum.