• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3

# Investigating the relationship between the image distance and the object distance for a convex lens

Extracts from this document...

Introduction

AS Physics Experiment

## Investigating the relationship between the image distance and the object distance for a convex lens

Fair testing

In this experiment I will be changing two factors which will be the object distance and the image distance.

The following factors that are going to be kept constant are:-

1. The positioning of the image and light source – if this is changed; it could affect the results and may give anomoulous results. The light source must also point at the image and directly at the convex lens.

Middle

Measure the object distanceMeasure the image distance where the reflection of the image is the smallest and sharp.Measure the bulb filament in the reflection.Record down the measurements.Repeat each time, making sure to decrease the object distance.

#### ➔ Obtaining Evidence

Results Table

 Object Distance (cm)

Conclusion

10">0.25

30

14

0.5

0.3

25

15.5

0.5

0.4

20

18

0.5

0.5

15

23

0.5

0.9

14

23.4

0.5

1.3

Graph – Line of Best Fit

#### ➔ Analysis

This graph above illustrates that as the object distance is decreased as more light is exposed through the convex lens meaning an increase in image distance. I think the results were fairly accurate, because you can see a general trend and hardly an anomalous result. How because it was conducted by a human rather than machine it would be that it is less accurate than it could have been due to human errors. Because of this I will work out the percentage error for the equipment I used.

This student written piece of work is one of many that can be found in our AS and A Level Microscopes & Lenses 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 AS and A Level Microscopes & Lenses essays

1. ## In this experiment I will be investigating the efficiency of a motor. I hope ...

Obviously the time was not as accurate as I would have hoped as the motor picked little weights quickly over short distances. The efficiency for the motor in this experiment was quite low, so not much of the energy put in was used usefully.

2. ## Relationship Between U and V For a Convex Lens

+ 0.3378 f = 14.9 FOCAL LENGTH = 14.9 cm ANALYSIS This is focal length of the lens which I am going to use throught the experiment. It tells me that the minimum distance u can be is 14.9cm, where the object distance is between F and the lens, and a virtual image is produced.

1. ## Lenses experiment

size, or else the results will not work out because the images will be of different sizes not following with the trend. Therefore my dependant variables will be the lens I use and the object that I use. My independent variable will be the object distance because that will be

2. ## To investigate the relationship between the distance between a lens and an object, and ...

A concave lens does not form any such image, it makes only a "virtual image" which cannot be displayed on a screen as it will be on the same side of the lens as the object. In order to construct a ray diagram, you need to know the focal length

1. ## Investigating the Positioning of Real Images formed by a Convex Lens.

equation can also be used for curved mirrors a s well as lenses. Note that converging lenses and mirrors have positive focal lengths, whereas diverging lenses and mirrors have negative focal lengths. 3. Rough preliminary work proposed The preliminary work that I have proposed is to look carefully at a

2. ## My experiments focus is to obtain an accurate measurement for a specific lenss power.

Summary: I would summarise that my results are satisfactorily accurate and reliable considering it is the first experiment. There are definitely improvements to be made, such as the high uncertainties in the higher 1/V values. My experiment had an element of zero error which is a type systematic error.

1. ## Determine the effect changing the object to the lens distance has on the distance ...

Equipment List * Ruler * Screen of thick white paper * Photographic slide (as object) * Lens (focal length of 10cm) * Lens stand * Clamp stand * Power pack * Ray box Experiment Diagram Plan 1. Set up equipment and find focal length of lens.

2. ## Proving the lens formula.

Small plastic holder used to keep the lens in place. A Metre rule - Will be used to measure both the object distance (U) and the image distance (V). It has millimetre units, although large and hard to take a precise measurement in mm.

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