Refraction.

Slides:

Advertisements

Similar presentations

Refraction of Light.

Advertisements

An Introduction to Refraction SNC2D. Index of Refraction Light will travel more slowly in more dense materials. The ratio of the speed of light in a vacuum.

Waves – Topic 4 Chapters 26 Reflection & Refraction Reflection & Refraction Reflection & Refraction.

Refraction of Light. What is Refraction? Refraction is the bending of light as it travels from one medium to another. Refraction is the bending of light.

Refraction of light. Refraction is the bending of light as it passes from one medium to another.

sections 26-3 – 26-5 Physics 1161: Pre-Lecture 22 Reflection and Refraction of Light.

The Refraction of Light:. Just what is refraction of light?

Physics. PHS 5041 Optics Refraction of Light Refraction always occurs simultaneously with some partial reflection Change in direction is with respect.

Refraction occurs at a boundary The speed of light must change at the boundary The angle of the light ray is measured from the normal, as was the case.

Light by Rifki Irawan Refraction. Based on how the light behaves as it encounters a substance, substances can be classified into: Transparent substance.

1.What is ‘α’ called? 2.What is ‘β’ called? 3.Define the term ‘refraction’ 4.α = 42 o, β = 30 o, v 1 = 7ms -1 and λ 1 = 2m. Using Snell’s law, calculate:

REFRACTION. REFRACTION OF WAVES Refraction: A change in the direction of waves as they pass from one medium to another, or of water waves as they encounter.

LIGHT REFRACTION OF LIGHT

 A change in the direction of light as it moves from one type of substance into another. Figure 14-5 on p. 399 removed for copyright.

Reflection and Refraction. Reflection Two laws of reflection Angle of incidence = angle of reflection The angle of incidence, angle of reflection and.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Refraction Chapter 14 Table of Contents oRefraction and Snell’s Law.

Chapter 14 Section 1: refraction.

Lesson 29 Wave Characteristics of Light. Wave Function for Light v=λν i.For light v = 3.0x108m/s according to Einstein (maybe false now????)

Refraction and Snells Law SNC2D Index of Refraction Light will travel more slowly in more dense materials. The ratio of the speed of light in a vacuum.

In a vacuum (void of molecules), light travels at 3.0 x 10 8 m/s, Light travels at different speeds in different materials or mediums. while in water.

Refraction (Slowing Down) When a wave passes into a medium that makes it slow down, the wave will bend toward the normal Air Water.

the change of direction of a ray of light as it passes obliquely from one medium into another of different transmission speed.

Refraction -Refraction of Sound -Refraction of Light.

Refraction. Have you ever seen this? Refraction of Light When light travels through a surface between two different media, the light will be refracted.

When light travels from one material to another it usually changes direction The bending of light that occurs at the borderline of two materials is called.

Chapter 7 Light and Geometric Optics. 7.3 Refraction of Light.

Refractive Index To be able to use Snell’s law to work out the refractive index of a material.

Chapter 26 The Refraction of Light: Lenses and Optical Instruments.

Refraction Chapter 12 (p ). Refraction Refraction: The bending or change in direction of light when it travels at an angle from one medium into.

12.1 What is Refraction?.  The bending or change in direction of light when it travels from one medium to another.

The Refraction of Light, the Index of Refraction, and Snell’s Law

Have you ever wondered why a straw appears to be disconnected when placed in water?

Refraction of Light.

Refraction and Lenses. Objectives Recognize situations in which refraction will occur. Identify which direction light will bend when it passes from one.

REFRACTION OF LIGHT. BEHAVIOR OF LIGHT Light acts both as a wave and as a particle Called a “wavicle” Light needs to interact with a surface in order.

Happy Tuesday! Get ready for warm up #4 Get out paper for notes. Title them: “Snell’s Law and Refraction” Essential Question: What is Snell’s Law?

Refraction The Bending of Light. What is Refraction? Light travels in straight lines in one material. When light travels from one material (medium) to.

Last lesson Refraction of light. Refraction When a wave changes speed (normally when entering another medium) it may refract (change direction)

Reflection & Mirrors There are two kinds of mirrors Plane mirrors

11.1 Refraction of Light.

Refraction of Light.

Refraction of Light.

Refraction Chapter 14: Section 1.

Grade 11 Physical Science – Mrs KL Faling

13/11/2018 KS3 Light W Richards Worthing High School.

Reflection Law of Reflection

Chapter 15 Refraction.

Lesson 17 Key Concepts and Notes

Refraction of light.

Physics Section 14-1 Refraction.

Plane Mirror – Reflection

Chapter 14 Refraction.

Physics Review Refraction Topic Slides Minutes Displacement Vectors

Light Refraction – the “bending” of light as it passes through a surface from one medium to another When light leaves a less dense media such as air and.

Reflection & Refraction

Refraction The bending or change in direction of light when it travels from one medium into another.

REFRACTION OF LIGHT.

The Index of Refraction

Refraction Refraction.

Presentation transcript:

Refraction

Learning goals We are learning why light bends. We are learning to calculate the index of refraction.

refraction when light enters a new medium it changes speed the speed of light is dependent on the substance (medium) it is travelling in

Refraction the bending of light as it moves from one medium to another. Medium examples – air, water, oil, glass, etc.

refraction

Cause of refraction light will bend towards the normal when its speed decreases light will bend away from the normal when its speed increases

Apparent depth the depth an object appears to be at due to refraction of light in a transparent medium

every medium has an index of refraction (n), the ratio of the speed of light in a vacuum to the speed of light in the medium Index of refraction

Snell’s Law used to calculate the refractive index (n): Where: c = 3.0 x 108 m/s v = speed of light in medium n = refractive index

What is the refractive index of material in which light travels at 2 What is the refractive index of material in which light travels at 2.5 x 108 m/s? Example #1

How quickly would light travel in a material with a refractive index of 1.75? Example #2

Learning goals We are learning why light bends. We are learning to calculate the index of refraction.

P519 #2-4 P525 #2,3,6-8 Homework