SAT Subject Physics Practice Question 263: Answer and Explanation

Next steps

Question: 263

34. What principle is the basis for the transmission of light through glass (fiber optic) cables, allowing the signal to be sent even if the cable is bent?

A. Photoelectric effect
B. Uncertainty principle
C. Light diffraction
D. Light polarization
E. Total internal reflection

Correct Answer: E

Explanation:

Fiber optic cables transmit light using total internal reflection. A, B, C, and D do not apply here.

Previous       Next