Choice Card

What is the Doppler effect?

5 years ago Accepted AvailableLanguage: English
What is the Doppler effect?
  • The change in pitch over movement. (Correct.)
  • The change in volume over movement. (While this may change, Doppler specifically refers to...)
  • The change in duration over movement. (There usually isn't a relationship here.)
  • The change in color over movement. (Color may change over movement, but we typically refer to...)
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