Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Bending light phet lab answers

12/11/2021 Client: muhammad11 Deadline: 2 Day

Experiments in Physics Lab – Snell’s Law and total internal reflection Name______________________________Score__________________ Introduction: When light travels between two different medium, the velocity and wavelength changes. The result is the “bending” of the light. The “bending” of light is referred to as refraction. The “bending” follows a convenient mathematical relationship called Snell’s law, named after Dutch astronomer Willebrord Snellius (1580-1626). The purpose of this lab is to determine the relationship between the incident angle of a light beam and the refracted angle of the light beam as the beam passes from one medium to another. In addition, students will demonstrate the application of Snell’s Law. As consequence, students will be able to determine the critical angle for a light beam that travels from a more dense medium to a less dense medium. Part I: Discovering Snell’s Law with “Bending Light 1.1.1”

(1) Start the PHeT simulation entitled “Bending Light”. The simulation is available at the following website: https://phet.colorado.edu/

(2) Click on the “More Tools” box. (3) Turn on the laser and drag the circular protractor such that the protractor is centered along the normal line

and the boundary between the two mediums. Also, drag the speed indicator tool out from the tools located at the lower left of the simulation. The laser can be dragged to change the incident angle. Play with the simulation and try changing some of the different parameters. Make sure to select “Ray” and check the “Angles” box.

The top area, the air, is considered medium 1. Index of refraction = = air (default setting)

= incident angle measured from the normal (dashed line) = refracted angle measured from the normal

θ1

θ2

n1

n2

The bottom, or dark region, is considered medium 2 with an index of refraction . The initial setting is glass at 1.5.

(4) The index of refraction, given by the letter n, is defined as the ratio of the speed of light in a vacuum to

the speed of light in a medium: , where c = m/s. As light travels into different substances,

the velocity of light is lower. For our purposes the speed of light in a vacuum will be the same as that of air. Use the speed tool to measure the velocity of light in the glass. Write the velocity in terms of c. _____________________________________.

(5) Use the definition for the index of refraction to verify that the index of refraction for glass is 1.5. Show all your work in the box below.

(6) The relationship between the velocity, frequency, and wavelength of a wave is given by . Since the frequency remains constant when light travels between different media, an expression can be written to solve for . For medium 1, and for medium 2, . By making an appropriate substitution, write a mathematical expression for , in terms of . Show all your work.

(7) Set the following initial data parameters and complete the table below. Write all velocities in terms of

the speed of light, c. Record your values for and to three significant figures. Record your values for in nanometers.

Data Set

1

2

3

Data Set 1 λ1 = 650nm n1 =1.250 n2 =1.548 θ1 = 55.0°

Data Set 2 λ1 = 460nm n1 =1.000 n2 =1.333 θ1 = 35.0°

Data Set 3 λ1 = 542nm n1 =1.500 n2 =1.224 θ1 = 40.0°

(8) Use the above data and complete the table below for the ratio’s given. Record your values to 3 sig. figs.

Data Set

1

2

3

(9) Based upon the pattern you see above for the ratios across different data sets, write a complete mathematical expression for Snell’s Law. Verify your expression by looking up Snell’s Law in your textbook, the internet, or by asking your instructor.

(10) All of the ratios have medium 1 values in the numerator. Using the definition for the index of refraction,

write expressions for and in term of . Using the expressions, show that .

Part II – Total internal reflection or TIR (1) As you may have seen in your observations (such as in Data Set 3), when light travels from a more dense

medium, such as water (n = 1.33) to a less dense medium, such as air (n = 1.00), the light ray bends away from the normal (the dashed line). At a specific angle, called the critical angle, the light ray will bend 90 degrees from the normal. Set the following initial data parameters and complete the table below.

Data Set λ1 = 650nm n1 =1.333 n2 =1.000

/ degrees / degrees Reflected angle /degrees 20 40 60 80

(2) What happens when the refracted angle approaches 90 degrees? _________________________________ (3) Based upon what happens, estimate the critical angle, , for the water-air interface.

_____________________ (4) Use Snell’s Law to derive a formula for the critical angle in terms of where

and . Verify your formula using your textbook, the internet, or by asking your instructor. Show all your work.

For questions 5 to 7, use a laser wavelength of 650 nm. (5) Estimate the critical angle for a glass (n1 =1.500) – air (n2 = 1.000) using the simulation. ______________ (6) Calculate the critical angle for the glass-air boundary. ____________________

(7) Calculate the critical angle for a “Mystery A” – air boundary. ___________________________________ (8) Using the internet or a table from your textbook, determine what “Mystery A” might be.

_____________________________________________________________________________________ Part III – Problem solving using Snell’s Law

(1) A scuba diver on a boat (index of refraction = 1.000) shines a violet light (415 nm) towards the water (index of refraction = 1.336) to illuminate some phosphorescent coral. With what wavelength in nanometers does the light strike the coral? What is the velocity of the light when it strikes the coral, in terms of c? (Hint: the velocity of light in air is 1.00c)

(2) A double pane surface consists of a layer of oil on top of a layer of water (index o1.333). A red laser beam

(650nm) moves between the two surfaces, passing through the oil at a speed of 0.71c and into the water at a speed of 0.75c. The incident angle from the oil to the water boundary is 32 degrees. What is the index of refraction for the oil? What is the refracted angle, measured from the normal, for the red laser beam going into the water?

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Premium Solutions
Maths Master
Quick N Quality
Assignment Helper
High Quality Assignments
Smart Accountants
Writer Writer Name Offer Chat
Premium Solutions

ONLINE

Premium Solutions

I will be delighted to work on your project. As an experienced writer, I can provide you top quality, well researched, concise and error-free work within your provided deadline at very reasonable prices.

$46 Chat With Writer
Maths Master

ONLINE

Maths Master

As an experienced writer, I have extensive experience in business writing, report writing, business profile writing, writing business reports and business plans for my clients.

$18 Chat With Writer
Quick N Quality

ONLINE

Quick N Quality

I have worked on wide variety of research papers including; Analytical research paper, Argumentative research paper, Interpretative research, experimental research etc.

$20 Chat With Writer
Assignment Helper

ONLINE

Assignment Helper

After reading your project details, I feel myself as the best option for you to fulfill this project with 100 percent perfection.

$48 Chat With Writer
High Quality Assignments

ONLINE

High Quality Assignments

I have read your project description carefully and you will get plagiarism free writing according to your requirements. Thank You

$34 Chat With Writer
Smart Accountants

ONLINE

Smart Accountants

I am an academic and research writer with having an MBA degree in business and finance. I have written many business reports on several topics and am well aware of all academic referencing styles.

$18 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Human behavior negative and positive effects on the environment - Fiber-optic cable transmits data as pulses of light through tiny tubes of glass. - Parable of the talents meaning - Computer science 9608 past papers 2017 - Lab 4 projectile motion answers - Iia indian institute of architects - Why is my kindle fire so hot - Me talk pretty one day questions and answers - 8/21 holbrook avenue kirribilli - Ib chemistry chapter 2 - Time of setting of hydraulic cement by vicat needle experiment - How to make a molecular orbital diagram - Post office directories queensland online - Beverly hills building department - Divert nbn phone to mobile telstra - +91*-***9414601882 lOvE marriagE prOblEm sOlutiOn nagpur - Mbti vs big 5 - How to use bernzomatic soldering iron - Police organization and management issues for the next decade - Sources of data ppt - What are the behavioural adaptations of an echidna - Sunshine coast council rates - Thermo king code 63 causes - Lesson Plan Vital Section - International Management Theory PPT - Hex paper 5 hexes per inch - Introduction to criminal justice chapter review answers - Cooling curve of water - Cyberstore tpg com au your account - Pros and cons of internal and external growth strategy - Black flower of civilized society - Vty password is not set - Marie rostek coastal plastic surgery - Five step marketing research approach powerpoint - Ati maternal newborn remediation - Assignment cover sheet usyd - Moving control volume fluid mechanics - Business and society stakeholders ethics public policy pdf - A christmas carol staves - Patient admission - Cliff keen kickoff classic results - The blind side analysis - 8946 candlewood lane clarence ny - Discussion 5 - Statistics - Marshmallow food label - American Dream - Train moira to belfast - Heinemann chemistry 1 vce sb eb 5e - Mufaro's beautiful daughters story pdf - Dan murphys sugar free - Ability to work in a team environment selection criteria examples - Lección 2 repaso pruebas de práctica - Prom king and queen nomination forms - Rectangular tray using sheet metal - Discussion - Body of evidence garage scene - Carry me back home blues saraceno chords - 5 reflexive verbs in spanish - What is a random assignment in psychology - Ebonite optyx skull bowling ball - The final PICOT question - Social psychology movies - Discussion 2.3 - Gordon rush geoffrey leather chelsea boot - Whipps cross hospital ward map - 1 - Romeo and juliet vocabulary list - Self determined learning heutagogy in action - Global emotional intelligence test - Safaricom mission statement - Cinnamon oil protocol for lyme disease - Uncle tom's tavern t shirt blues brothers - Unit 3 information systems assignment 2 - To what amount will the following investments accumulate - Square number word problems - Internal Assessment Survey 04 - Cpt code for antrectomy - Hidez suit for horses - Least common multiple of 8 10 and 12 - Prepare waters journal entry to record impairment of the goodwill - Simple scope document template - Econ - Getting ready to cook worksheet answers - Flip flop gymnastics tupelo ms - Mumps programming language example - Gyprock ceiling batten spacing - Public policy proposal for nuclear waste - Pilatus pc 12 spectre - Game of life career cards - Jean watson the philosophy and science of caring - 6 indicators of chemical change - Our vanishing night by verlyn klinkenborg - Health Care Delivery Discussion 4 - How to write a rationale history - Bus route 444 timetable - Jacob allusion merchant of venice - AVD3 Due in 24 Hours - Dante's Inferno Canto 25-30 Discussion Post - Confucius the master tactician