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

Focal Length Of A Concave Mirror

Extracts from this document...


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. ...read more.


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, and the object distance . ...read more.


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 versus 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. Name: Gihan Mallawaarachchi Date: 19/02/02 ...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 Sylvia Plath 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 Sylvia Plath essays

  1. The mirror 3 diary entries.

    If you don't believe me I actually saw my mother's reflection. I had a good time at my cousin's birthday party because it's on Christmas day. 24/6/07 Today a tragic thing happened my father died. He died today at 2:00pm.

  2. 'Disaster in the Alps'- To compare the way three news publications, The Times, The ...

    These particular interviews were used in order to provide an image of the events immediately before the plane hit the cable car. Each article also had interviews with people who objected to low flying by the Americans. In The Mirror, Regional President, Carlo Andreotti, was quoted as saying that "war games, "which" put people's lives at, risk" "should stop."

  1. Sea Fever Analysis.

    In addition to personification, Masefield uses several similes and metaphors that increase the effectiveness of the already strong imagery. The simile "the winds like a whetted knife", appeals to the senses and helps the reader feel the cold wind blowing.

  2. Find out the focal length of the mirror through focusing the image of distant ...

    The pin is moved away from the mirror along the principal axis until their separation is about twice the focal length. The position of the pin is adjusted until it coincides exactly with its image by no-parallax method until there is no relative motion between the image and the object pins i.e.

  1. Creative writing - Through The Mirror at Midnight.

    Sometimes I think she likes me. However, right then the only thing I could think was, I wish I was invisible! I gazed down at my plate and sighed. There was only about a mouthful of mashed potatoes left on it. Although I hated meat loaf, I was starving.

  2. "Morning Song" and "Sonnet 19"

    The Simile: 'Love set you going like a Fat Gold Watch', Is at the start of the poem and has many hidden meanings. As well as it being the start of the poem it is also the start of the baby's life.

  1. Through the Mirror At Midnight

    He then disappeared back through the mirror. I sat there motionless with questions racing through my head. "Did that just happen? If it did, what did he mean? What gate?" This left me pondering all the way home. That day I plucked up some courage and was determined to go back.

  2. How do Hughes and Hardy both use memory in their poems?

    I think he feels helpless, as if he already knows that this relationship is not going to be the best of relationships. He might feel a sense of doom about it, because her scar was so prominent, and it signifies quite a lot about her.

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