Question

In which of the following situations is the Doppler effect absent?

Answer 1

Answer:

The source and the observer are moving towards each other. The observer is moving toward the source. The source is moving away from the observer

Explanation:

Answer 2

When the listener and the source of sound are stationary then the doppler effect is absent.

What are the characteristics of the doppler effect?

• If the source of sound is moving towards the observer then it causes the doppler effect
• It is the change in the frequency when the listener moves with the source of sound
• When the sound pitch of vehicles and horns changes then it is a doppler effect
• The doppler effect is founded by Christian Doppler in 1842