A light beam is incident at an angle  on the top surface of a block of plastic. The sides and bottom of the block are immersed in water. If =50, find.

Slides:

Advertisements

Similar presentations

Phase change on Reflection, Refraction. S A B C N P E T AIR t i r r i r r L L M i Q O P r U U.

Advertisements

05 – The Law Of Reflection.

Lesson 9.  The phenomenon of refraction had been observed for centuries, but it was not until 1621 that its cause was stated mathematically.

Chapter 35 The Nature of Light and the Laws of Geometric Optics EXAMPLES.

Bending Light Refraction at it’s finest!. Vocabulary Refraction- the bending of light as it passes from one material into another. Prism- a polyhedron.

Refraction What has happened in each example and why? I think this is called...It happens when... It happens because...The air is... The water is...The.

Physics for Scientists and Engineers, 6e

Fiber Optics Defining Characteristics: Numerical Aperture Spectral Transmission Diameter.

Reflection & Refraction of Light Reflection: specular (mirror) vs diffuse angle of incidence = angle of reflection Refraction: Snell’s Law n 1 sin 

OPTICAL FIBER WAVEGUIDE Optical Fiber Waveguides An Optical Fiber is a dielectric waveguide that operates at optical frequencies Normally cylindrical.

PH 103 Dr. Cecilia Vogel Lecture 2. RECALL OUTLINE  Ray model & depth perception  Reflection  law of reflection  mirror images  Polarization REMINDER.

Total Internal Reflection

Refraction happens when light crosses a boundary between two materials. air glass Slide 1 of 14.

Refraction. Reflection & Refraction Refraction Air – lower refractive index Water – higher refractive index The Kingfisher When light is passing from.

Reflection, Refraction, and Diffraction. Reflection  Reflection – wave strikes a surface and is bounced back. Law of Reflection: angle of incidence =

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

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.

GROUP 8. REFLECTION-REFRACTION  How we can teach the students about reflection and refraction:

© 2003 By Default! A Free sample background from Slide 1 Total Internal Reflection.

Unit – K3 Refraction 25th of May 2007 Form Group 8_y.

Light & Optics. Law of Reflection The angle of incidence of reflected light equals the angle of reflection.  r =  I Note that angles are measured relative.

Refraction. Light  Tends to travel in straight lines  If you need to bend light or shine it into difficult-to-reach.

The Refraction of Light SNC2P – Optics. Refraction Refraction: the bending or change in direction of light when it travels from one medium into another.

Copyright © 2010 McGraw-Hill Ryerson Ltd. What is refraction and how can it be used? Topic4.5 (Pages ) Today we will be... Having a short quiz on.

Refraction. Light can bend not only when it reaches a reflective surface but also when it goes from one medium to another Medium (pl. media) –The substance.

Refraction of Light. Learning Objective: Describe what happens to light when it goes from air to another substance. Study the relationship between the.

Refraction of Light.. A light beam going through a slab of glass:

Analysis for Optics Lab  Choose 6 hypothesis/data sections and analyze the hypothesis and the data 1. Briefly summarize the experimental setup 2. Summarize.

Consider a light ray incident upon a flat glass/air interface. Under what conditions will some of the light be reflected? a) Some of the light will be.

14.1 Bending of light Determining the refractive index of glass In an experiment, a ray of light is directed towards a semi-circular glass block at various.

Four Important Properties of Waves. 1.Reflection 2.Refraction 3.Diffraction 4.Interference.

Refraction. Reflection When light reflects from smooth surface you can see an image. The image: - is _______ the object. (smaller than, the same size.

L3 Refraction Learning Objectives: Describe refraction.

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

Reflection S4P1 Students will investigate the nature of light using tools such as mirrors, lenses, and prisms. Investigate the reflection of light using.

PW3 - Refraction.  When light passes from glass into air (an optically less dense medium), it refracts away from the normal.

Air Liquid A question based on refractive index, Snell’s law, total internal reflection, and some geometry.

Final Exam and End Material Test

Investigating Refraction of Light

Refraction in 2 Dimensions Contents:

What Physics is involved here?

Light Waves. We see objects because they emit or reflect light Cataract is an eye problem when one of the eyes become cloudy so the people are unable.

Reflection and Refraction

IV. Optics Nature of light. Spectrum of electromagnetic waves.

Review of Snell’s Law & Refraction Calculations

Snell's Law applet.

4.5 What causes Total Internal Reflection?

The angle of incidence is equal to the angle of reflection

Total Internal Reflection

Final Exam and End Material Test

A reminder of the important laws of refraction

10.3a Bending light When a ray of light enters a glass block at an angle to the normal, the angle is called its angle of incidence (i).

Medium: material through which electromagnetic waves (e. g

Behavior of Light.

4.5 What causes Total Internal Reflection?

Lesson 17 Key Concepts and Notes

Primary rainbow Secondary rainbow Rainbows:

Behavior of Light Practice problems.

REFRACTION AND INTERNAL REFLECTION

REVISION REFRACTION.

The light refracts at an angle f.

From last week- Light.

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.

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

Adv Physics Chapter 22 Sections 3 and 4.

light slows down (v<c)

Presentation transcript:

A light beam is incident at an angle  on the top surface of a block of plastic. The sides and bottom of the block are immersed in water. If =50, find the angle the light makes with the normal to the plastic/water interface when it exits the block. (nplastic=1.49, nwater=1.33). θ Air Plastic 30.94 59.06 73.9 Water

A light beam is incident at an angle  on the top surface of a block of plastic. Find the maximum value of  for which the refracted light is totally reflected from the left face of the plastic block, if the block is immersed in water. (nplastic=1.49, nwater=1.33). 63.20