A buzzer with frequency f₀ is thrown straight upwards.On the buzzer's trip down,what is the frequency behavior heard by an observer below? A)The frequency heard is still f₀. B)The frequency is a constant one greater than f_0. C)The frequency is an increasing one greater than f_0. D)The frequency is a decreasing one less than f_0.

Question

Quizplus · Accepted Answer

The Doppler effect causes the frequency of the sound heard by an observer to increase as the source of the sound (the buzzer) moves closer. Since the buzzer is moving downwards towards the observer, the frequency heard will be an increasing one greater than the original frequency emitted by the buzzer.

A Buzzer with Frequency F0 Is Thrown Straight Upwards

A Buzzer with Frequency F₀ Is Thrown Straight Upwards