Question

What is Doppler effect?
please answer fast?​

Answer 1

Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer. For instance, when a sound object moves towards you, the frequency of the sound waves increases, leading to a higher pitch. .

Answer 2

Answer:

an increase or decrease in the frequency of sound, light or other waves that causes the sudden change in pitch

Explanation:

pls mark me brainilist