lensesandtelescopeslab - Lenses and Telescopes Lab I....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Lenses and Telescopes Lab I. Purpose : The purpose of this lab is to learn how to construct two types of refracting telescopes and study their performance identifying focal lengths and magnification. II. Procedure : First, we were given four which we defined each as either a converging lens (thicker in the middle than at the edges) or a diverging lings (thicker at the edges). Then we had to attach each converging lens to the yard stick, which a white note card was also attached to. We then had to determine the focal length of each converging lens by pointing our “telescope” at the overhead light in the room. We used a note card to reflect the light to determine the smallest point on the note card. Once we did so, we counted the centimeters on the yard stick between the lens and the focal point on the note card. The distances measured were the focal lengths of the lenses, which we recorded and you can find in the data section of this write-up. Next, we found the focal length of the diverging lens. We did so by holding the diverging lens directly against the converging lens with the shortest focal length, and we used the combined pair to form an image on the index card. We then measured and recorded the distance (the focal length) of the pair. We then used the following
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/22/2010 for the course AST 8716 taught by Professor Reim during the Spring '10 term at University of Southern Maine.

Page1 / 3

lensesandtelescopeslab - Lenses and Telescopes Lab I....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online