Three Flat Layers of Transparent Material Are Stacked Upon One

question 82

Multiple Choice

Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n₁,the middle n₂ and the bottom one n₃.If n₁ > n₂ > n₃,and a ray of light in air strikes the top layer,at which surface given can total internal reflection occur first?

• A)the top surface
• B)the surface between materials with indices n₁ and n₂
• C)the surface between materials with indices n₂ and n₃
• D)Total internal reflection cannot occur at any of these surfaces.

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Definitions:

Amphibians

A class of cold-blooded vertebrates that includes frogs, toads, salamanders, and newts, characterized by their ability to live both in water and on land.

Mammals

Warm-blooded vertebrates characterized by the presence of mammary glands, which females use to feed their young, and usually hair or fur on their bodies.

Aquatic Animals

Animals that live in water for most or all of their lives, including fish, amphibians, and various invertebrates, adapted to their liquid environment in various ways.

Wood Lice

Terrestrial crustaceans from the order Isopoda, known for their ability to roll into a ball as a defense mechanism; commonly found in moist environments.