All GRE Subject Test: Physics Resources
Example Questions
Example Question #2 : Optics
A beam of light travels through a medium with index of refraction until it reaches an interface with another material, with index of refraction . No light is transmitted into the second material. At what angle (measured from the plane of the interface between the two materials) does the beam hit the second material?
Possible Answers:
This situation is impossible.
Correct answer:
Explanation:
Total internal reflection occurs at the angle:
However, this angle is measured from a line normal to the plane of the interface; the angle we want, therefore, is , which is .
Magdy
Certified Tutor
Certified Tutor
Cairo University, Egypt, Bachelor of Science, Electrical Engineering. New Mexico State University-Main Campus, Doctor of Phil...
All GRE Subject Test: Physics Resources
Popular Subjects
Calculus Tutors in Philadelphia, Statistics Tutors in New York City, Physics Tutors in Atlanta, SSAT Tutors in Washington DC, Reading Tutors in Boston, LSAT Tutors in Boston, SAT Tutors in Denver, SSAT Tutors in Dallas Fort Worth, Spanish Tutors in Dallas Fort Worth, Physics Tutors in Philadelphia
Popular Courses & Classes
SAT Courses & Classes in Houston, GRE Courses & Classes in Houston, GMAT Courses & Classes in Chicago, MCAT Courses & Classes in Houston, SAT Courses & Classes in Chicago, ACT Courses & Classes in Washington DC, SSAT Courses & Classes in Houston, MCAT Courses & Classes in Chicago, ISEE Courses & Classes in Seattle, LSAT Courses & Classes in Miami
Popular Test Prep
MCAT Test Prep in Chicago, SAT Test Prep in Houston, ACT Test Prep in Washington DC, GMAT Test Prep in Chicago, ISEE Test Prep in San Francisco-Bay Area, SAT Test Prep in New York City, LSAT Test Prep in Miami, SAT Test Prep in Phoenix, MCAT Test Prep in Phoenix, MCAT Test Prep in New York City