Consider a camera with a CCD detector in it which captures the image made by the...
Consider a camera with a CCD detector in it which captures the image made by the lens. The focal length of the lens is 49.2 mm.
(a)
If we want to take a picture of some distant object, how far from the surface of the CCD detector should we put the lens? (Consider the distance to the object to be infinite.)
mm ( ± 0.2 mm)
(b)
If we next want to take a picture of an object a distance ?=8.68x=8.68 maway, by how much should we change the distance between the detector and the lens (the new image location minus the one in part (a))?
mm ( ± 0.02 mm)
(c)
Suppose we didn't change the position of the film, but left it in the position for taking a picture of a distant object, as in part (a). A "point" of light a distance ?x away would not be "focused" properly on the film but instead would produce a "dot" on the film. Find the diameter of the dot. The diameter of the lens is 1.0 cm.
mm ( ± 0.004 mm)
(d)
If we cover up part of the lens so that light can only enter through a hole 3 mm in diameter, find the diameter of the dot in part (c).
mm ( ± 0.002 mm)
Homework Answers
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Consider a camera with a CCD detector in it which captures the
image made by the...
2. You are planning to take a picture of a distant object with a simple camera....
2. You are planning to take a picture of a distant object with a simple camera. (a) What kind of lens is used in the camera? What kind of image is formed on the film (sensor): - is this real or virtual? Is this upright or inverted? [3 points) (b) Draw a clearly the ray diagram showing the image formation. Label the object distance, image distance and the focal length. [8 points) (c) You would like to photograph a 20-m...
2. You are planning to take a picture of a distant object with a simple camera....
2. You are planning to take a picture of a distant object with a simple camera. (a) What kind of lens is used in the camera? What kind of image is formed on the film (sensor): - is this real or virtual? Is this upright or inverted? (3 points) (b) Draw a clearly the ray diagram showing the image formation. Label the object distance, image distance and the focal length. [8 points) I (c) You would like to photograph a...
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Part II: Corrective Eyeglasses Not everybody can adjust their eyes to be able to see both distant and nearby objects clearly. In a normal eye, light from a distant object forms a sharp image on the retina. In a far-sighted eye, light from a distant object converges too gradually and would form a sharp image behind the retina (of course the retina gets in the way, and thus a blurry image hits the retina). In a near-sighted eye light from...
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*- Jordi 1. 14 points. You wish to project an image of a slide onto a screen for a slide show. The slide is initially in a holder 0.0500m from the lens and the screen is 3.00m from the lens. The image is well-focused on the screen. a. Determine the focal length of the lens used to project the image. b. Is the lens converging or diverging? How do you know? c. If you instead want to use a screen...
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0.8 1.53 1.3 No Rays Marginal rays Principal rays Many rays 2nd Point Change Object Show Guides Virtual Image Screen ✓ Ruler curvature radius(m) refractive index diameter(m) ES 40 -SE 100 120 140 160 Step 2: di- the distance between the image and the lens di = 200 cm Drag the ruler to the left and measure the distance between the...
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