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

Single Slit and Double Slit Diffraction

Extracts from this document...

Introduction

Single Slit and Double Slit Diffraction Objective To observe the diffraction patterns created by laser light passing through a single slit and double slit and to verify the equation which predicts the diffraction patterns in theory. Mathematical Theory n ? = d sin(?) n ? = d Procedure 1. Align a laser, a diffraction disk, and a light sensor mounted on a rotary motion sensor. 2. Allow the laser to pass through the diffraction disk. ...read more.

Middle

a 4x10-5 m wide slit Single slit diffraction pattern with a 8x10-5 m wide slit Double slit diffraction pattern with a 4x10-5 m wide slit and 2.5x10-4 m between slits Double slit diffraction pattern with a 4x10-5 m wide slit and 5.0x10-4 m between slits Double slit diffraction pattern with a 8x10-5 m wide slit and 2.5x10-4 m between slits Data Analysis By observing the characteristics of the diffraction patterns produced, one can see the difference between the single slit diffraction patterns and double slit diffraction patterns. ...read more.

Conclusion

The double slit diffraction patterns are more complex than those of produced by single slit diffraction patterns. Evaluation Although the general shapes of the expected diffraction pattern can be seen in all cases, there are many instances of minor aberrations in the graphs. These can be attributed to many factors; exposure to external light, misaligned equipment or human errors when manually sliding the light sensor. Conclusion All in all, the graphs seem consistent with the patterns predicted by theory. The expected diffraction pattern is clearly seen in all cases. Thus, the diffraction pattern predicted by theory was confirmed by this lab. ?? ?? ?? ?? Physics IBH-2 Mr. Butler Joseph Florendo November 22, 2001 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Systems and Control 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

See related essaysSee related essays

Related GCSE Systems and Control essays

  1. The aim of this investigation is to design, build and test a sensor.

    The response time for my sensor was very quick for each distance respectively. It can easily be recognised from my results table and the above graph that the relationship between response time and distance away from LDR is that the response time to detect the change increases as the distance from the LDR increases.

  2. Investigate and construct a sensor.

    were plugged into the positive, and negative of the loudspeaker through to the input of the sound generator. I had then switched the oscilloscope on and had placed the microphone near the loud speaker. Following this I switched on the loudspeaker, set the sound frequency of the sound generator, and then heard a sound being produced.

  1. An electronics firm wishes to introduce a range burglar alarms. This coursework contains the ...

    The sound sensor is very complex and may take too long to construct. Research - Sensing people walking along the hall As the task analysis shows there are many ways of sensing people coming through a doorway. I built them all using SYSTEM ALPHA to ensure that: They work I know how they work.

  2. Design and build an electrical toy for children aged 5 years and over.

    A Mechanised Pinball Machine This will simply be an ordinary pin ball machine with moving parts which flick and toss the ball. These moving parts will be powered by motors concealed underneath the decorative platform on which the ball rolls.

  1. Calibrating a Potentiometer sensor.

    the readings, which will allow me to plot them accurately on a graph and come up with the calibration curve. The range needs to large enough so any anomalous results will not drastically affect my curve and small enough to be able to be done in the allocated amount of time.

  2. Building and testing a sensor to determine number of degrees to which a window ...

    As a result the bottom half of the circuit draws more voltage than the top half. This gives a different voltage reading each time the slider is moved along a bit more. The voltage from the battery is split between two resistances in series proportionally to the size of their resistance.

  1. The aim of this investigation is to build and test a sensor, and explaining ...

    Therefore, I had to deduce another method of measuring airflow: (3) This time I 'scrapped' the rotary potentiometer sensor and introduced a light sensor (light dependant resistor). Where the amount of light on the sensor was varied dependant on airflow: It was apparent that results were gained; however the experiment was very inaccurate.

  2. The aim of this investigation is to design, build and test a sensor.

    The resistance of the LDR is directly proportional to the resistance of the fixed resistor. Therefore, as the resistance of the LDR increases, the resistance of the fixed resistor decreases. This proportion of the potential difference can be found by Preliminary Experiment Prior to the experiment design stage, I conducted

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work