Which statement is not true of optical fiber?

Question

Optical fiber completely reflects light rays.
Optical fiber can be made either of glass or plastic.
Optical fiber is about the same thickness as copper wire.
Optical fiber can carry thousands of phone conversations.

Answer 1

Optical fiber is about the same thickness as copper wire.

Answer 2

In an operating room, which device would you not expect to find connected to an optical fiber cable?

monitor
camera
scalpel
microscope

Answer 3

Scalpel.

Answer 4

Which of the following is not a typical benefit from the use of optical fibers for surgery?

Doctors can use laser light to seal blood vessels and stop bleeding.
Surgeons can make smaller cuts, or incisions, in a patient’s skin.
Surgeons can repair damage to joints, such as knees, more effectively.
Doctors can examine internal organs without having to perform major surgery.

Answer 5

Surgeons can repair damage to joints, such as knees, more effectively.

Answer 6

What is necessary to achieve total internal reflection?

a mirror
a large angle of incidence
a small angle of incidence
an optical fiber

Answer 7

A large angle of incidence.

Answer 8

Total internal reflection _____.

allows no light to escape from an optical fiber
prevents you from seeing the bottom of a swimming pool
causes light rays to travel in parallel lines through optical fiber
allows most laser light to be reflected inside an optical fiber

Answer 9

Allows most laser light to be reflected inside an optical fiber.