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 geostationary satellite is used for TV tpidtbnna g l62h/160 broadcasting. I dfv fu8);-svct orbits so that its position remains fixed above a receiver on earth. It undergoes circular motion with a speed of v and the emitted frequency for a channel is f. Which of tcffv u)- ;d8svhe following is correct?
A. The observed frequency by the receiver is less than f.
B. The observed frequency by the receiver is more than f.
C. The observed frequency by the receiver is equal to f.
D. The observed frequency by the receiver is equal to $f(\frac{v}{c}+1)$
参考答案: C
本题详细解析:
Explanation: Doppler effect only occurs when there is relative motion between the observer and the source. In this case, the satellite and receiver are motionless relative to each other. Therefore, there will be no change in frequency.
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