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

Investigating the Relationship Between Real and Apparent Depth.

Extracts from this document...

Introduction

        Physics Coursework        Tom Dennis

Investigating the Relationship Between Real and Apparent Depth

Introduction:

In this coursework I am going to measure the real and apparent distance of an optical pin placed behind glass blocks. To do this I got two glass blocks and stuck a pin at the end of one of the glass blocks and then placed a drawing pin on to the glass blocks and then moved the drawing pin around to get the apparent depth and the real depth was the length from the pin to the end of the glass blocks. I made a diagram to clearly show how the apparatus was assembled. The apparatus and the way in which I conducted the experiment looks like the diagram below.

The apparatus that we used was as follows:

2 x Glass blocks

1 x Drawing pin

1 x Optical Pin

Cellar Tape

1 x Wooden Board

Method

To make the experiment successful I made sure the safety factors were taken into account, the experiment was very safe as there was no real danger that could be inflicted

...read more.

Middle

Refractive Index = Speed of Light in Air/ Speed of Light in Material

As soon as I collected my data I recorded them in a neat table to make sure the results were recorded correctly.  

I took 7 readings altogether, 7 readings are plenty of results to achieve a high level of reliability.

My table of results that I collected are as below. As I did two sets of apparent depth it shows clearly that my results are reliable.

Real Depth (cm)

Apparent Depth 1 (cm)

Apparent Depth 2 (cm)

Average Apparent depth (cm)

6.3

4.7

4.6

4.65

7.8

5.7

5.5

5.6

11

7.5

7.2

7.35

12.8

8.3

8.4

8.35

13.1

9.5

9.3

9.4

17.9

11.7

11.4

11.55

22.8

15.6

15.6

15.6

...read more.

Conclusion

d and therefore my experiment was successful. To get a better look in to the investigation I decided to work out refractive index as well to be able to show my results more clearly.

My results for refractive index are as follows.

Position

Real Depth (cm)

Apparent Depth (cm)

Refractive Index (cm)

1

6.3

4.65

1.35

2

7.8

5.6

1.39

3

11

7.35

1.5

4

12.8

8.35

1.53

5

13.1

9.4

1.4

6

17.9

11.55

1.55

7

22.8

15.6

1.46

Evaluation

As I did the experiment continuously until I got the readings that were reliable then I cant say that the results weren’t reliable, and so I can only come up with one possible way to make the experiment better and more reliable. As I used my eyesight to do this the one error I can come up with is human error, because I used my eyesight then this could have altered my results, to make this better I could have used a lazer beam as this would have made my results much more accurate. Also I could have used a ruler that was more precise to make my readings even better. My prediction was proved right, to sum up my experiment I would say it was successful as I managed to gather some good results that proved my prediction.

        Page

...read more.

This student written piece of work is one of many that can be found in our GCSE Waves 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 Waves essays

  1. Marked by a teacher

    Resonance of a Wine Glass

    3 star(s)

    I had two options: (a) I first tried a video camera. Once the camera was set up about a metre away and the zoom used to enlarge the image on the screen, I videoed a few attempts of resonating the wine glass.

  2. is sunbathing good for you?

    The entire course includes (1 x 10 minutes) + (9 x 25 minutes) = 235 minutes. Over a year you may have six of these courses. (6 x 235 minutes = 1410 minutes) Duration of the UV session ( for each separately treated part of the body)

  1. Investigating the speed of travelling waves in water.

    too early, or stopped too late, this can cause a great difference in the readings, thus giving irregularities in the speed-readings. Moreover, when lowering the tray to start the wave pulse, I did not always lower the tray at exactly 20mm, despite the fact that I used the spine of a book to assist.

  2. Investigation Into How the Depth of Water Affects the Speed of a Wave.

    Apparatus Water container Ruler Water Pencil Paper Measuring cylinder Results The results I've gained I've put into a table, which I show below. Attempt 1 Attempt 2 Attempt 3 Attempt 4 Attempt 5 AV Height 2 2.5 2.3 2.6 2.4 2.1 2.3 Height 4 2.3 2.4 2.4 2.4 2.1 2.3 Height 6 2.4 2.6 2.5 2.3 2.1 2.3.

  1. Is the speed of sound affected when it travels threw different temperatures of air

    Strike the tuning fork with the rubber hammer and hold the fork so that it vibrates vertically, as shown in the picture. The other lab partner should lower the water supply cup to allow water to drain from the glass tube, making the actual resonance tube longer.

  2. The aim of my experiment is to see what factors affect electromagnetism the most ...

    When looking at the bars the less space between the value of the variable and the mass of the paperclips the better, because less energy is being expended to get more mass of paperclips, and the variable with the least space between itself and the mass of the paperclips was the current.

  1. Light is so common that we often take it for granted.

    By understanding how light behaves, scientists have learned to design a variety of optical instruments that aid in the study of the universe. For example, microscopes enable us to examine extremely small objects, such as single-celled organisms. With telescopes, we can observe distant but very large objects, such as galaxies and planets.

  2. Deviation of Light by a Prism.

    E Sin 34.8� x 1.51 = 0.862 Sin-1 0.862 = 59.5� Therefore E = 59.5� The angle of deviation can now be calculated by considering the following triangle: If the two angles "X" and "Y" are added together then this will give the angle represented by "?".

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