LensExercises

LensExercises - Exercises 1 Fray is holding up several...

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

View Full Document Right Arrow Icon
Exercises 1 . Fray is holding up several large pieces of curved pieces of glass in front of her. Determine the type of lenses (converging/diverging) these are, and what kind of Fray image (real/virtual) you are seeing through the glass. This is Fray with no lens in front of her. (a) (b) (c) 2 . Rank these lenses ((I)-(IV)) from shortest to longest focal point. Then rank these lenses from greatest to least optical strength. 3 . Kelly's eyeglasses have a focal length of +10cm and Fray's eyeglasses have a focal length of -5cm. Whose eyeglasses could start a fire by focusing the light from the Sun onto a piece of newspaper to ignite it—Fray’s or Kelly's? 4 . Lens Practice: i) Locate the each of the following objects with a ray tracing, ii) Locate each of the following objects with the thin lens equation, iii) Determine the magnification with your ray tracing, iv) Determine the magnification mathematically, v) Check that your answers match (if you didn’t already), vi) Check your work with the applet on the course web page. a) An object is placed 4 cm from an f =+10cm lens. b) An object is placed 8 cm from an f =+10cm lens. c) An object is placed 8cm from an f =-10cm lens. d) An object is placed 18 cm from an f =+10cm lens. e) An object is placed 18 cm from an f =-10cm lens. f) An object is placed 15cm from a converging lens that has a focal length of +7.5cm? 5
Background image of page 1

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

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

{[ snackBarMessage ]}

Page1 / 3

LensExercises - Exercises 1 Fray is holding up several...

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