Reflection and its Importance

Slides:



Advertisements
Similar presentations
Reflection Objectives:
Advertisements

The bouncing off of light as it hits a surface
Mirrors Law of Reflection The angle of incidence with respect to the normal is equal to the angle of reflection.
Nature of Light. Light Light can be modeled as a wave and a particle Transverse, electromagnetic wave Photons — particles of light.
Grade 8 Science Unit 2: Optics
Grade 8 Science Unit 2: Optics Chapter 5: The law of reflection allows mirrors to form images.
Reflection & Refraction of Light Reflection: specular (mirror) vs diffuse angle of incidence = angle of reflection Refraction: Snell’s Law n 1 sin 
Distinguish between specular and diffuse reflection of light. Apply the law of reflection for flat mirrors. Describe the nature of images formed by flat.
Reflection: What is it? Reflection occurs when light bounces off an object. Reflection allow our eyes to see the world around us!
FLAT MIRRORS Chapter 13: Section 2. Learning Targets  Describe how the angle of incidence is related to the angle of reflection  Explain how surface.
Types of Surfaces. When light hits different surfaces, it behaves in different ways. Surfaces can be one of three types. Light can pass through a substance,
Light, Mirrors, and Lenses O 4.2 Reflection and Mirrors.
Chapter 17: Reflection & Mirrors Honors Physics Bloom High School Mr. Barry Latham.
The Ray Model of Light. Light travels in straight lines: Laser Part 1 – Properties of Light.
The Ray Box: Part One. Law of Reflection The law of reflection for light states that when light is incident on a specular reflecting surface the angle.
Learning Objectives To define the laws of reflection To apply the laws of reflection to winning at mini golf.
Plane Mirrors.
Reflection and Light Flat Mirrors.
Chapter 13-2 Flat Mirrors. Conceptual_Physics/3 1_Reflection/01/sp.ht mlhttp://localhost:26300/ Conceptual_Physics/3 1_Reflection/01/sp.ht.
Properties of Reflective Waves Flat Mirrors. Light travels in a straight line Some light is absorbed Some light is redirected – “Reflected”
11.6 Laws of Reflection: Plane (flat) mirrors
11.4 The Ray Model of Light.
Introduction to Light. Light is an EM wave All EM waves travel at the same speed through a vacuum: c = 3 x 10 8 m/s - FASTEST! fast faster.
Lesson objectives Teachers' notes 1)Students will discover how light interacts with certain types of surfaces 2) Students will understand the laws governing.
Types & Laws of Reflection
Reflections. When a wave reaches a boundary of two media, some or all of the wave will bounce back into the first media You see waves bounce off a pier.
Geometric Optics (Lecture I)
Reflection of Light. Reflectance u Light passing through transparent medium is transmitted, absorbed, or scattered u When striking a media boundary, light.
Laws of Reflection and Plane Mirror Images
Why we see images in mirrors Or… The angle of reflection is equal to the angle of incidence.
Getting in Light’s Way. Optics For the study of optics, when looking at the behaviour of light, it is very helpful to use a simplified model called the.
An Introduction to Reflection SNC2D. We Reflect Light None of us generates light in the visible region of the electromagnetic spectrum. We are not sources.
Reflection D. Crowley, Reflection To know what reflection is, and the law of reflection.
MIRRORS AND REFLECTION. Reflection The change in direction of a wavefront at an interface between two different media so that the wavefront returns into.
The incident ray and the reflected ray behave in predictable ways, which leads to the two laws of reflection: 1.The angle of incidence equals the angle.
- Review the following scene: REFLECTION  is the change in direction of a light ray when it bounces off a surface For an observer standing beside the.
Reflection and Refraction. The Law of Reflection – incident rays and reflected rays make equal angles with a line perpendicular to the surface called.
Chapter 5. Early understanding of light Issac Newton (particle theory of light) – Thought light was made up of tiny particles – Extremely fast moving.
Light at a Surface: Important terms:
Aim: How do we recognize various wave behaviors?
Light, Mirrors, and Lenses
Law of Reflection and Plane Mirrors
Reflection Get Ahead Lecture
Grade 8 Science Unit 2: Optics
Plane Mirrors.
Laws of reflection.
Reflection of Light Definition of Reflection Types of Reflection
Reflection and Refraction
Light travels in straight lines:
Reflection and Mirrors
Grade 8 Science Unit 2: Optics
WAVES WAVE INTERACTIONS.
Learning goals We are learning the types of reflection.
Learning goals We are learning the types of reflection.
Lesson 14 Key Concepts and Notes
Reflection and Light Flat Mirrors.
Science 8 – Mirrors and Lenses ANSWERS
Flat Mirrors.
Chapter 13.
Reflection Physics Chapter 18a.
Mirror Reflections and Images
Science 8 – Mirrors and Lenses
OPTICAL DESIGN K.F. Chan (Mr.) MEBS 6002.
Why we see images in mirrors
An Introduction to Reflection
OBJECTIVES 1) Trace light rays as they reflect from a plane mirror.
air water As light reaches the boundary between two media,
WAVES WAVE INTERACTIONS.
Aim: How do we explain the law of reflection?
Reflection.
Presentation transcript:

Reflection and its Importance

The Law of Reflection Angle of incidence = angle of reflection Regardless of surface orientation Measured from normal to surface

2 Types of Reflection Specular reflection Smooth surfaces Mirrors, calm bodies of water

Where you see this happen… Headlight glare on a wet roadway Reflections on water High gloss paint job Windows reflecting the outside world Glossy magazine pages Your bathroom mirror

2 Types of Reflection Diffuse reflection Rough surfaces Clothing, paper, roads

Examples…

Examples…