Which statements are true for optical fibers?
I Optical fibers carry light by total internal refraction.
II Optical fibers are constructed of a high-refractive-index transparent core enclosed in a lower refractive-index transparent cladding.
III Optical fibers exploit Snells Law,n₁ sin $\theta$ ₁ = n₂ sin $\theta$ ₂,to transmit light along the length of the optical fiber.
IV If n₁/n₂ < 1,there is an allowed range of angles $\theta$ _i in which essentially all light is reflected at the walls of the core,with negligible amounts of light penetrating the cladding.

Question

Which statements are true for optical fibers?
I Optical fibers carry light by total internal refraction.
II Optical fibers are constructed of a high-refractive-index transparent core enclosed in a lower refractive-index transparent cladding.
III Optical fibers exploit Snells Law,n₁ sin

\theta

₁ = n₂ sin

\theta

₂,to transmit light along the length of the optical fiber.
IV If n₁/n₂ < 1,there is an allowed range of angles

\theta

_i in which essentially all light is reflected at the walls of the core,with negligible amounts of light penetrating the cladding.

Quizplus · Accepted Answer

The Answer of Which statements are true for optical fibers? I Optical fibers carry light by total internal refraction. II Optical fibers are constructed of a high-refractive-index transparent core enclosed in a lower refractive-index transparent cladding. III Optical fibers exploit Snells Law,n₁ sin $\theta$₁ = n₂ sin $\theta$₂,to transmit light along the length of the optical fiber. IV If n₁/n₂ < 1,there is an allowed range of angles $\theta$_i in which essentially all light is reflected at the walls of the core,with negligible amounts of light penetrating the cladding.

Which Statements Are True for Optical Fibers? I Optical Fibers θ\thetaθ

Which Statements Are True for Optical Fibers?
I Optical Fibers $\theta$