# Focal Length Of A Concave Mirror

Length: 327 words (0.9 double-spaced pages)

Rating: Excellent

#### Essay Preview

Focal Length Of A Concave Mirror

Aim: To observe the focal length of a concave mirror.

Materials:

· Concave Mirror

· Retort Stand

· 2 Pins in stands

· Candle

· Matches

· Ruler

· Screen

Procedure:

1. An approximate focal length was found using parallel light from a
distant object.

2. The mirror was placed in a stand. Pin (A) was moved in its stand,
in front of the mirror till there was no parallax between the pin and
its inverted image.

3. The distance from the object to the mirror was measured.

4. The object pin was placed between F and C. Then the second pin (B)
was moved about till there was no parallax between (B) and the image
(A). The distances of the image and objects were measured.

5. Step 4 was repeated for another position of (A).

6. The image of a light source was located using a screen. Then the
image and object distances were measured.

7. Step 6 was repeated twice.

8. The corresponding values of u and v were tabulated.

Results:

U

V

0.50 m

2.00 m

0.55 m

1.40 m

0.60 m

1.25 m

0.65 m

1.00 m

0.70 m

0.95 m

0.75 m

0.57 m

Data Analysis:

· The tabulated results of step 8 illustrated the image distance,
[IMAGE] and the object distance [IMAGE].

Graphical method

· The two variables, [IMAGE] and [IMAGE] were substituted into the
linear equation y = mx + c to form [IMAGE]= - [IMAGE] + [IMAGE].

· The data was plotted on the graph [IMAGE] versus [IMAGE], thus
proving the relationship between the variables and the linear
equation.

See Figure 1.1

Algebraic method

I. The mirror formula [IMAGE]=[IMAGE]+[IMAGE] was used to calculate f,
the focal length of the mirror for each of the results.

MLA Citation:
"Focal Length Of A Concave Mirror." 123HelpMe.com. 26 Jan 2020
<https://www.123helpme.com/view.asp?id=120306>.

## Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

## Newton 's Telescope Project Report Essay

- Newton’s Telescope Project Report Introduction One of the outcomes of the Newton’s work was the development of the reflecting telescopes. In essence, the earliest telescopes such as the one used by Galileo consisted of the glass lenses mounted in a tube (Jenny, et al. 12). Further, Newton discovered that when light passed through a lens, the different colors were refracted by differing amounts. In solving this problem of the chromatic aberration, Newton designed a telescope that used mirrors, rather than lenses, to bring the light to a focus....   [tags: Optics, Lens, Geometrical optics, Focal length]

Research Papers
1755 words (5 pages)

## The Focal Length of The Lens in the Tube Essay

- The Focal Length of The Lens in the Tube Plan I plan to set up the apparatus as shown below and change 'b'. To then make the image focus, I will have to change 'c'. When the image is focused, I will measure 'c' and also the magnification of the image. Using this information I will then be able to calculate 'a'. [IMAGE] Hypothesis ========== I predict that using the equations stated in the justification, after measuring values for 'c' and 'm'. I will be able to plot them on the graph of 'c' against 'm' Using the equation c = fm + [f - a]....   [tags: Papers]

Free Essays
1651 words (4.7 pages)

## Accurately Predicting the Focal Length For Four Lens Systems Essay

- Abstract: We attempted to accurately predict the focal length for four lens systems: a 100 mm lens, a 200 mm lens, a compound lens system, and an unknown lens. This was done by using an optics track with a mounted light and displayed image, and measurement of the location of image in full focus after movement of a white display plate set up after the lens system. The best value of f100 was determined to be from unweighted computations, with a value of f100=(0.096±0.0004) m, with a percent error of 3.6%, a fractional error of 0.4%, and a discrepancy of 9.1σ....   [tags: Research Analysis]

Research Papers
1812 words (5.2 pages)

## The Physics Of Thin Lenses Essay

- Theory: The purpose of this experiment was to demonstrate and better understand thin lenses. The two types of thin lenses are concave where the lens curves in and convex when the lens curves out. There are three characteristics of thin lenses, which include; a chef ray, which goes through the center of the lens and does not deviate, the parallel ray that shines parallel to the lens and is refracted through the focal point on the opposite side, lastly there is the focal ray, which shines through the focal point that is on the same side of the lens as the object and at the middle of the lens is refracted parallel to the lens....   [tags: Optics, Lens, Focal length, Convex]

Research Papers
752 words (2.1 pages)

## Finding the Focal Length of a Given Convex Lens Essay

- Finding the Focal Length of a Given Convex Lens Aim: - To find the focal length of a given convex lens. Apparatus: - Convex lens Metre rule Screen Candle Matches Wooden blocks Theory:- In this experiment the focal length of a lens is found out. The focal lens of a lens is the distance from the principal focus to the optical centre....   [tags: Papers]

Free Essays
722 words (2.1 pages)

## The Infinity Mirror Essay

- The Infinity Mirror   "Tularecito" is a myth about truth. Tularicito, just a character of that myth, is the focus for this glossed over fable. Steinbeck draws on this form of genre to present the idea that we are all a part of what happens to others, based upon our nature.   The image presented of Tularecito is that of a demon, an idiot savant, a boy with a gift from God, and that gift's cost. He is a freak, a dangerous misfit, an innocent who does not need the constraints of reality....   [tags: The Infinity Mirror]

Free Essays
715 words (2 pages)

## Essay on Mirror for Man - A Logical Conclusion

- Mirror for Man - A Logical Conclusion Kluckhohn explains the differences and similarities among people of the world as culture. Culture, in this instance, spans a variety of areas. To begin with, culture is the way a person was raised. In addition, it's the values a person was taught. Finally, culture is related to man's biological needs. Habits that a person is taught as a youngster will influence the rest of his life. Societies have a tendency to have distinct habits that their people live by, First, education is one example....   [tags: Mirror for Man Essays]

Free Essays
565 words (1.6 pages)

## Essay on Mirror for Man - Understanding the Definition of Culture

- Mirror for Man: Understanding the Definition of Culture In Clyde Kluckhohn's passage, adapted from his book, Mirror for Man, we are given an illumination of anthropology on the concept of culture. He explains that culture is not only derived by "the way we are brought up," but also personal past experiences and the biological properties of the people concerned. As humans we have learned to adapt to our own personal surroundings and have conditioned ourselves and our life styles to revolve around such surroundings by the most comfortable means possible....   [tags: Mirror for Man Essays]

Free Essays
679 words (1.9 pages)

## Essay on Transcending Place and Time in Mirror for Man

- Transcending Place and Time in Mirror for Man In the given passage from Mirror for Man, Clyde Kluckhorn explains the similarities and differences between cultures by first defining the anthropological concept of "culture" and then explaining his definition. The definition Kluckhorn gives relies heavily on common sense. Culture is: "the total life way of a people, the social legacy individuals acquire from their group. Or culture can be regarded as that part of the environment that is the creation of human beings." By giving us this definition, Kluckhorn immediately deletes any chance of mininterpreting the word and concept of culture....   [tags: Mirror for Man Essays]

Free Essays
1068 words (3.1 pages)

## Mirror Essay

- The Mirror Steam rose from the water and filled the bathroom with ghostly, swirling eddies, and phantasms of white, transparent ribbons of vapor. Tracy basked in the water, relishing the prickly fingers of hot water as it soothed the muscles of her body. Her red hair lay in wet, matted strings over her shoulders and breasts. Her eyelids were closed, hiding her deep, emerald green eyes. Tears squeeze from her eyes as the memory of the phone call echoed through her mind. It had been a woman’s voice on the other end of the line, and she had asked for Justin, Tracy’s husband....   [tags: essays research papers]

Free Essays
1234 words (3.5 pages)

### Popular Essays

II. The average of the consistent results was then calculated.

See Figure 1.2

Conclusion:

The experiment enabled the physicist to locate the focal point of a
concave mirror. Through the use of obtained results, the graph [IMAGE]
versus [IMAGE] was formulated, proving that a linear relationship
exists between the two variables. However the concave mirrors used in
the experiment were too small in depth, which inhibited accurate
measurements due to human error. Consequently the experiment was an
overall success, the minor errors contained in the data did not affect
the outcome of the experiment, which succeeded to locate the focal
point of the mirror.