Two cars are traveling in the same direction and with the same speed along a straight highway. Does either driver hear a different frequency from the other car's horn than they would if the cars were stationary?
A)They both experience a Doppler shift.
B)Only the driver of the front car experiences a Doppler shift.
C)Only the driver of the rear car experiences a Doppler shift.
D)No, because neither driver experiences a Doppler shift.
E)It is impossible to predict.

Question

Quizplus · Accepted Answer

Since both cars are moving at the same speed in the same direction, there is no relative motion between them, so no Doppler shift occurs.

Two Cars Are Traveling in the Same Direction and with the Same