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.

Slides:

Advertisements

Similar presentations

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.

Advertisements

Refraction: bending of light at the interface of 2 different materials

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

Refraction Lesson 4. Objective You will be able to qualitatively and quantitatively describe the behavior of waves as the pass from one medium to another.

Refraction of light.

Reflection & Refraction When waves are incident on the boundary between to media, some of the wave will be reflected back into the first medium, some of.

Reflection and Refraction.  When a wave moves from one medium into another (reaches a boundary) ◦ Speed of the wave changes  More dense  slower  less.

Dr. Jie ZouPHY Chapter 35 The Nature of Light and the Laws of Geometric Optics.

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,

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.

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.

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

 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.

Last lesson Light travels faster than sound Using ray boxes The law of reflection.

P5g - Refraction of waves Refraction is…. Refraction.

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

Sound of Music Learning check! #2. 1. What is the approximate value of the refractive index of glass? A. 1.3 B C D. 133.

Understanding the Spectrum, Reflection, & Refraction Ms. Majewski.

Refraction of Light. Refraction  The bending of light as it travels, at an angle, from a material with one refractive index to a material with a different.

Higher Physics – Unit Refraction of Light.

Reflection and Refraction

Refraction What do you think? Suppose you are reaching for swim goggles floating below the surface of a pool or trying to net a fish while out in.

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.

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

Chapter 17 Reflection and Refraction. Ch 17.1 How light behaves at a boundary.

Light Kennesaw State University Physics Light is a form of electromagnetic radiation The light wave is composed of electric as well as magnetic.

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.

Refraction -Refraction of Sound -Refraction of Light.

How Light Behaves at a Boundary

Refraction: bending of light at the interface of 2 different materials.

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.

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

1 Refraction, the Snell law Light in geometric optics is discussed in rays and represented by a straight line with an arrow indicating the propagation.

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

When light enters a more dense material, (e.g. perspex), it will slow down…  This is called Refraction. The speed of light in a vacuum is 3x10 8 ms -1.

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.

Lesson 1 What is light? Objective: see lesson Do Now Define Electric Field.

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)

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/

Refraction of Light.

Refraction Chapter 14: Section 1.

Kennesaw State University Physics 2213

Medium: material through which electromagnetic waves (e. g

Properties of waves.

Behavior of Light.

Reflection and Refraction

Refraction of light.

Reflection and Refraction (Snell’s Law).

Chapter 14 Refraction.

Refraction of waves (and of light)

light slows down (v<c)

The speed of light in air is essentially c. (c = 3.00x108 m/s).

Reflection & Refraction

REFRACTION OF LIGHT.

Refraction Refraction.

3.5 How does light behave when it moves from one medium to another

Presentation transcript:

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 wavelength is 2m. What is the speed of the wave now? The angle which the incoming wave is coming towards the straight boundary of the shallower region is 40 o. Calculate the difference between the angle of incidence and the angle of refraction.

Snell’s Law

Try this! A water wave moves onto a deeper region. The angle of incidence = 80 o Refractive index of the shallow water = 1.3 Refractive index of the deeper water = 1.0 Calculate the angle of refraction.