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Optics and Light Phenomena Quiz

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Questions and Answers

What is the significance of white light in optics?

It can be treated as a combination of three primary colors. (correct)
It cannot be separated into colors.
It has only one wavelength.
It can only be produced by the sun.

Which of the following best describes total internal reflection?

Light passes through a medium and bends slightly.
Light completely reflects off a boundary in a denser medium. (correct)
Light is transmitted with some loss of intensity.
Light is absorbed entirely by a medium.

What does Snell's law describe?

The speed of light in different media.
The process of light absorption.
The phenomenon of light magnification.
The relationship between the angles of incidence and refraction. (correct)

What is the primary role of concave mirrors?

They can magnify images. (A) Signup and view all the answers

Which equation relates the object distance, image distance, and focal length for a lens?

$rac{1}{f} = rac{1}{d_{i}} + rac{1}{d_{o}}$ (A) Signup and view all the answers

How does light behave as it passes from one medium to another?

It can be absorbed, reflected, or refracted. (C) Signup and view all the answers

What is magnification in optics?

A measure of how much larger or smaller an image is compared to the object. (D) Signup and view all the answers

What is the wave model of light used to explain?

The properties and behavior of light. (A) Signup and view all the answers

Flashcards

Law of reflection

The angle of incidence is equal to the angle of reflection, measured from the normal line.

Refraction

The bending of light as it passes from one medium to another.

Magnification

A measure of how much larger or smaller an image is compared to the object.

Index of refraction (n)

The ratio of the speed of light in a vacuum to the speed of light in a medium.

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Snell's Law

Describes the relationship between the angles of incidence and refraction, and the indices of refraction of the two media.

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Total Internal Reflection

Light is reflected completely off the wall within a denser medium, rather than passing through to a less dense medium.