All GRE Subject Test: Physics Resources
Example Questions
Example Question #2 : Electromagnetics, Waves, And Optics
A car's horn has a frequency of . As the car drives away from you, you hear the horn at a frequency of . What is the speed of the car?
Possible Answers:
Correct answer:
Explanation:
The equation for the Doppler effect with frequency for a moving source is given by:
Where is the speed of sound, is the speed of the source, is the stationary frequency and is the Doppler frequency. Substituting the known values and solving gives us the speed of the car.
Yoonsik
Certified Tutor
Certified Tutor
Seoul National University, Bachelor of Science, Physics. University of Pennsylvania, Doctor of Philosophy, Atomic and Molecul...
All GRE Subject Test: Physics Resources
Popular Subjects
Computer Science Tutors in Houston, SAT Tutors in New York City, English Tutors in Chicago, Reading Tutors in San Diego, Biology Tutors in Seattle, GRE Tutors in Seattle, Statistics Tutors in Los Angeles, Biology Tutors in Phoenix, SAT Tutors in Seattle, Reading Tutors in Dallas Fort Worth
Popular Courses & Classes
GMAT Courses & Classes in Denver, SSAT Courses & Classes in Seattle, MCAT Courses & Classes in Seattle, Spanish Courses & Classes in Houston, ISEE Courses & Classes in Washington DC, ISEE Courses & Classes in Miami, GMAT Courses & Classes in San Francisco-Bay Area, ACT Courses & Classes in Seattle, LSAT Courses & Classes in Washington DC, MCAT Courses & Classes in Los Angeles
Popular Test Prep
SAT Test Prep in Los Angeles, GRE Test Prep in Washington DC, ISEE Test Prep in Boston, GMAT Test Prep in Los Angeles, GRE Test Prep in Dallas Fort Worth, SSAT Test Prep in San Diego, SSAT Test Prep in Dallas Fort Worth, GMAT Test Prep in Atlanta, SSAT Test Prep in Chicago, MCAT Test Prep in Miami