Lesson 4.9 - Doppler Effect
VIDEO LESSON (32:09 min)
Video is not accessible in some countries. If you cannot view it, you might need VPN to do so.CONSIDER A TRAIN BLOWING ITS WHISTLE AS IT PASSES YOU.
The frequency of the whistle changes as it passes, from a higher frequency to a lower frequency. However, the engineer on train experience no change in pitch. Why is this the case?
DOPPLER EFFECT
EXAMPLE
EXAMPLE
APPLICATIONS
SONIC BOOM
MACH CONE ANGLE
最后修改: 2026年04月12日 星期日 11:49