Question

An arthroscope can be inserted into a knee joint through a very tiny incision to help a doctor examine the knee. A light is transmitted through the scope to illuminate the joint.
What type of light technology is being described?

Answer 1

Answer:

Total Internal Reflection

Explanation:

An arthroscope is an optical fiber which is used to examine knee by doctor. Light is transmitted through this scope using the phenomenon of Total internal reflection of light. When light is incident upon an interface of denser to rarer medium at a certain angle (which is greater than the critical angle), it undergoes total internal reflection within it. In this way, light is transmitted through thin optical fibers and can be used for various purposes.

Answer 2

Sample Response: The technology being described is fiber optics. Since they are small and flexible, they enable doctors to see areas that they might otherwise be unable to see without surgery.