An Optical Fiber Is Made of Clear Plastic with Index

question 44

Multiple Choice

An optical fiber is made of clear plastic with index of refraction n = 1.52.For what angles with the surface will light remain within the plastic "guide"?

• A) ϕ < 33.3°
• B) ϕ < 59.2°
• C) ϕ < 41.1°
• D) ϕ < 48.9°
• E) ​ϕ < 70.0°

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Definitions:

Deuterostomes

Lineage of bilateral animals in which the second opening on the embryo surface develops into a mouth; for example, echinoderms and chordates.

Radial Symmetry

A symmetrical arrangement in which body parts radiate out from a central point, common in animals like jellyfish and starfish.

Embryonic Opening

The embryonic opening refers to the blastopore, an early stage in the development of an embryo that can develop into the mouth or anus in different animal groups.

Chelicerates

A subgroup of arthropods that includes spiders, scorpions, ticks, and mites, characterized by the presence of chelicerae, which are claw-like mouthparts.