Time Frames for Negative Information. Late payments are black marks that normally stay on a credit report for 7 years. That's true of most negative information like foreclosures, Chapter 13 bankruptcies, charge-offs and paid tax liens; a Chapter 7 bankruptcy stays around for 10 years and unpaid tax liens can linger indefinitely.
Wiktionary (0.00 / 0 votes) Rate this definition: Doppler effect (Noun). The apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. Origin: From Johann Christian Andreas Doppler, the scientist who first proposed this effect.
If you are standing still and a car drives past you, the frequency of the sound will change as the car passes you. This is called the Doppler Effect. The sound pitch will be higher as the car is coming towards you and then lower as the car moves away. The sound the car is producing is not changing. Its frequency is the same.