Wave Behavior C.5 Doppler Effect (id: 6f55c2756)

本题目来源于试卷: Wave Behavior C.5 Doppler Effect，类别为 IB物理学

[单选题]
A car drives along a straight road. +o wp*ulfl1u +uxe/8m 5*bvlyRad,ywwv*h6k/y rwf)ti 7io waves of frequency $f_o$​ emitted from an antenna located at one end of the road are received by the car. The graph shows how the observed frequency $f$ by the car varies with time $t$.The graph shows how the observed frequency $f$ by the car varies with time $t$.


What can be stated for the motion of the car?

A. Stationary then approaches the antenna at a constant speed.
B. Moving at constant speed towards the antenna then stationary
C. Accelerates towards the antenna then moves with constant speed.
D. Accelerates towards the antenna then stationary.


参考答案:  C


本题详细解析:

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