• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# To find the speed of light in glass using Snell's Law / To prove the Snell's Law

Extracts from this document...

Introduction

Name:        Jonathan Tam                Class:        12A

Phyiscs

Experiment Report – Data Processingand Presentation, Conclusion & Evaluation

Aim:        To find the speed of light in glass using Snell’s Law / To prove the Snell’s Law

Data Collection:

Speed of light in air:        299702547 ms-1

(From http://www.what-is-the-speed-of-light.com)

 Angle of incidence (± 0.5°) Angle of reflection (± 0.5°) 63 37 54 32 42 26 34 22 26 16 25 15 11 8

Data Processing and Presentation: We can simply plug in the values of , and into the equation

...read more.

Middle

0.438

0.276

0.423

0.259

0.191

0.139

By rearranging the formula, we have: So we need the value of then take the avrage of this ratio and multiply it by the speed of light in air. 0.675 0.655 0.655 0.670 0.629 0.612 0.729

Average: 0.661

Please be aware that this is a ratio which has no units.

0.661 * 299702547 ms-1 = 198063544ms-1

We have the equation , which follows the pattern y = mx. We can plot a graph in order

...read more.

Conclusion

There are few limitations in this experiment.

 Apparatus / Variable Limitations / Discussions Improvements Protractor High uncertainty / Not precise enough Make the angle larger to decrease percentage error Light ray Light ray is diffracted and is hard to determine the angle of incidence and refraction Use a lens to focus the light rays in order to narrow it Material of refraction Uncertain whether it is purely glass or partly glass (might be mixed with other materials eg plastc) Check and see if the container cleaerly says “glass block” or “plastic block”

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related International Baccalaureate Physics essays

1. ## The purpose of this experiment is to determine the refractive index of Perspex plastic. ...

Graphing: Graph 1. Average trendline of sin(?1) vs. sin(?2): Graph 2: Maximum and minimum trendline of sin(?1) vs. sin(?2): More Sample Calculations: Sample calculation 4. Calculating the percent uncertainty of the average gradient: Sample Calculations 6. Calculating the refractive index of Perspex plastic and the uncertainty Since the angle of incident was the

2. ## Hooke's Law

Original Length x1 (m) ?x1=�0.0005m 1 0 0.138 2 0 0.156 3 0 0.146 4 0 0.138 5 0 0.150 Table 3.2 Data of spring 1 extension Trial (n) Mass m (kg) Suspended Length x2 (m) ?x2=�0.0005m 1 0.05 0.140 2 0.10 0.141 3 0.15 0.145 4 0.20 0.177 5

1. ## Aim: To prove the parallelogram law of vector addition

* The block is kept in the light and markings are made where the shadow of the string falls and the position of the center hook. * After this is done 5 times and readings are taken the parallelograms are completed and diagonals are drawn and measured.

2. ## Hooke's Law Intro and data processing

/ 3 = (0.490 + 0.458 + 0.491) / 3 = 0.480 N Average Force Uncertainty: = (Maximum Force - Minimum Force) / 2 = (0.491 - 0.458) / 2 = 0.02 N The equation of the line is: F = (0.291 � 0.007)x + 0.1 The slope comes out to be (0.291 � 0.007)

1. ## Aim of the Laboratory Experiment: Understanding of propagation of light waves phenomena by using ...

With experiments we determine the light intensity of an unknown light source. 3. We determine the dependence of the lamp light intensity on the applied voltage. Task 1 consists of three parts. The first part is to experimentally verify the accuracy of the photometer.

2. ## In this experiment, a mechanism is prepared to observe the refraction of light and ...

Because, when two or three dimensional wave travelling in one medium crosses a boundary into another medium, the transmitted wave may move in a different direction than the incident wave as shown in the figure below. This phenomenon is known as refraction.

1. ## Gamma Rays

In 1945, atomic bombs were detonated over Hiroshima and Nagasaki, Japan. Between 1945 and 1980, nuclear weapons were tested in the atmosphere of the Northern Hemisphere; during the most intense period of testing, from 1952 to 1962, about 520 tests were carried out.

2. ## Experiment to show the application of Kirchhoffs Voltage Law &amp;amp; Kirchhoffs Current Law in ...

Series circuit was patched same as the Diagram 1. 3. Positive voltage control was set to 10 V. 4. The voltage drop across R1 and R 2 was measured using voltmeter by setting it parallel to the resistor. 5. • Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to
improve your own work 