Speed of Light :- Light is composed of photons and photons travels only c = 3 x 108 m/s At the speed And travels fastest in vacuum C=3 10 8 In air =c/1.0003.

Slides:

Advertisements

Similar presentations

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.

Advertisements

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

Laws of Refraction Incident ray, normal line and refracted ray are in the same plane. Snell’s Law : for light refracting from any one medium to another,

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

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

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.

REFRACTION (Bending of Light) Light slows down or speeds up when it enters and leaves another material.

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.

 The amount of refraction in a material can be determined using the index of refraction.index of refraction  The index of refraction can be used to.

The incoming wave travels at 5ms -1 and has a wavelength of 4m. The wave changes its speed once it moves onto a shallower region and as the result its.

Refraction and Snell’s Law Refraction: bending of light at the interface of 2 different materials.

Refraction Chapter 15. Refraction Refraction: The bending of light as it travels from one medium to another Refraction occurs when light’s velocity changes.

Optics Reflection, Refraction & Snell’s Law Lesson 2

Reflection and Refraction. Regular Reflection Light travels in straight lines through a uniform medium. This is called rectilinear propogation. Light.

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.

LIGHT Reflection and Refraction. Mirrors and highly polished opaque surfaces reflect light in predictable ways.

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.

Refraction of Light Optical density a property of a transparent material that is an inverse measure of the speed of light through a material Optical refraction.

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

What happens when light enters a transparent medium (e.g. water)?

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

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

DO NOW What is the color of a light wave with a frequency of 5.65 x Hz?

Snell’s Law. Uses an equation that allows us to calculate how a ray of light will bend as it passes from one medium to another. Deals with the relationship.

REFRACTION Physics Chapter 18b. Refraction Bending rays of light as it passes from one medium to another Caused by change in speed of wave Amount of refraction.

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.

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

Chapter 17 Reflection and Refraction. When light passes from one medium to another it may be reflected, refracted or both.

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

What Physics is involved here?

Refraction of Light.

Refraction Chapter 14: Section 1.

Reflection and Refraction of Waves

Mirrors continued.

Grade 11 Physical Science – Mrs KL Faling

Snell's Law applet.

Kennesaw State University Physics 2213

Refraction and ….

Reflection Law of Reflection

Total Internal Reflection

Medium: material through which electromagnetic waves (e. g

Chapter 15 Refraction.

Reflection and Refraction of Light

Reflection and Refraction

Lesson 17 Key Concepts and Notes

Refraction of light.

Physics Section 14-1 Refraction.

Chapter 14 Refraction.

Physics Review Refraction Topic Slides Minutes Displacement Vectors

REFRACTION AND INTERNAL REFLECTION

REVISION REFRACTION.

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

Unit 2 Particles and Waves Refraction

REFRACTION OF LIGHT.

The Index of Refraction

Light wave is coming out of page

OPTICAL FIBRES.

Refraction Refraction.

Presentation transcript:

Speed of Light :- Light is composed of photons and photons travels only c = 3 x 108 m/s At the speed And travels fastest in vacuum C= In air =c/ In water =c/1.33 In glass=c/1.5

Index of Refraction 1- Absolute Index of Refraction of material :-is defined n=speed of light in vacuum/speed of light in the material =c/v 2- Small's Law index of refraction of material :- ni sinθ=nt sinθ Refraction :- When a ray of light is transmitted obliquely through the boundary between two material of unlike index of refraction the ray bends.

Component of refraction

Property of the refraction :- 1- If n1 ˃ n2 the ray refract bends toward the normal as it enters the second material 2- If n1 ˂ n2 the ray refract bends away from the normal components refraction.- 1-Angle of incidencei 2-Angle of refracted t(transmission ) The incident and refracted rays and the normal all lie in the same plane

Snell’s law:- ni sin i =nt sint Critical Angle :- Critical Angle c The condition of Critical Angle ;- 1- ray passes from a material of higher index of refraction to one of lower index 2- i<t and t =90 then i = c