Doppler Effect acts on type of wave ● Review: Doppler Effect is the perceived change in of a wave when the object emitting that wave is in
● This is a between light and sound – it happens to !
● How we know the universe is - the redshift

option c

Explanation:

As per the doppler's effect, when an object in the universe move at a fast speed away from the observer, its possesses a high wavelength as compared to its original wavelength.Since red light has the highest wavelength, any object's wavelength moving towards a high values is said to be red shifted.As per the doppler's effect, when an object in the universe move at a fast speed away from the observer, its possesses a high wavelength as compared to its original wavelength.Since red light has the highest wavelength, any object's wavelength moving towards a high values is said to be red shifted.Thus, the higher the wavelength, the lower will be the frequency of an object and hence it moves at a faster speed away from the observer and hence the universe is said to be expanding.As per the doppler's effect, when an object in the universe move at a fast speed away from the observer, its possesses a high wavelength as compared to its original wavelength.Since red light has the highest wavelength, any object's wavelength moving towards a high values is said to be red shifted.Thus, the higher the wavelength, the lower will be the frequency of an object and hence it moves at a faster speed away from the observer and hence the universe is said to be expanding.Thus, option C is correct.hope help

The answer is d) by requesting advice on science internet sites