The Doppler shift is______, when the direction of radio wave is opposite to that of the mobile station.
A、positive;
B、negative;
C、zero;
D、uncertainty
发布时间：2025-10-25 05:11:25
请在 下方输入 要搜索的题目：
推荐参考答案 (
由 快搜搜题库 官方老师解答 )
答案：positive
相关试题
- 1.The Doppler shift is______, when the direction of radio wave is opposite to that of the mobile station
- 2.Why does the Doppler shift form Doppler spectrum?
- 3.A plane progressive wave is represented by the equation y=cos(2πt−πx).
- 4.Mobile Internet is______(access) to the Internet using a mobile wireless modem.
- 5.FM radio signal belongs to which wave type?
- 6.When subjected to a pair of forces of equal magnitude, opposite direction, and the line of action coincident
- 7.For every force in one direction there is an equal force in the opposite direction.
- 8.When was the first feminism wave?
- 9.______ the mobile phone when crossing the street.
- 10.With the third wave of education and future application of AI _ the shift in how workers see learning
