1- A 2 m-high person is at 40 m from a lens with a focal length of 20 m. Find a) the position of image, the magnification, its size b) Is the image in front of the mirror or behind it? Is the image inverted or not? Explain.
Q: A student wishes to predict the magnification of an image given the distance from the object to a…
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Q: . An object lies outside the focal point of a diverging lens. Which of the following statements…
A: An object lies outside the focal point of diverging lens.
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Q: Q5) The eyepiece of a refracting telescope has a focal length of 9.00cm. The distance between…
A: Eyepiece focal length, f = 9 cm Distance between eyepiece and objective, d = 1.8 m = 180 cm Angular…
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A: Basic concept used: Using object distance first lens 1, will form an image at certain distance. Now…
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Q: 2. The drawing below shows three principle rays coming from the top of an object. One ray is…
A: Given data- An object placed at a distance d0 from converging lens.
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Q: 1. You are trying to photograph a bird sitting on a tree branch, but a tall hedge is blocking your…
A: Given; The x distance is x=3.3 m. The y distance is y=4.5 m. From figure, The bird distance on…
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Q: # 9. An object is placed in front of a lens and the image is upright, but smaller. What sort of lens…
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Q: A 2.0-cm tall object is 15 cm in front of a converging lens that has a 20 cm focal length. Determine…
A: We know that:-Lens formula:-1f=1u+1v here, f is focal lengthu is distance of objectv is distance…
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Q: 3. A lens is moved along the central axis between a fixed object and a fixed image screen. The…
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Q: a. If I have a magnifying glass that has two different lenses on it, how can I determine which lens…
A: (a) Let there be a magnifying glass with two lenses of focal length say f1 and f2. We need to…
Q: 1. Where around a convex lens should you place an object so that the image of the object forms at…
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A: The objective of the question is to determine the nature of the image formed by a diverging lens…
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A: We know Critical angle is inversely proportional to the refractive index. n = 1/sinC Critical angle…
Q: w9-9 A converging lens has a focal length of 8.00 cm. What is the nature of the image formed when…
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Q: You have a Convex Lens with a Focal Length of 12.8 cm. An object 5.0 cm in height is located 7.0 cm…
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Q: d) As people age, the crystalline lens hardens (a condition called presbyopia or “old-age” eyes) and…
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Q: A 1.10-cm-tall candle flame is 3.80 m from a wall. You happen to have a lens with a focal length of…
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- Which of the following statements is not consistent with geometric optics. a. Light rays propagate at small angles relative to the optical axis. b. The diffraction of light is neglected. c. Light rays propagate in straight lines. d. Light rays propagate near the optical axis. e. Ordinary objects always exhibit specular reflection when exposed to light.1. Assume that a camera has a bi-convex lens. Should you move the lens toward or away from the sensor in order to zoom in (magnify)? 2. A camera has a bi-convex lens whose focal length is 50mm. The lens’s range of motion is 5.56mm starting from 50mm from the sensor and moving away. What are the minimum and maximum possible object positions for which the image is in focus? 3. For the camera in the previous question, when a 300mm tall object is at the minimum distance, will it fit on a Canon APS-C sensor? Hint: Look up the size of this camera sensor. 4. See Figure 10.7! A circular piece of glass (n=1.5) has been cut in half as shown and is being used as a lens for a set of five parallel rays. The angles at which the rays are incident on the circular side of the lens are shown, and the image is drawn to scale. First, calculate the 5 angles of refraction for each of the 5 angles of incidence, respectively. Second, use a protractor to draw the refracted rays such that they intersect the…4. An object is 2 meters from a thin lens with a focal length of 50 cm. Apply the thin-lens equation to calculate the image distance from the lens and magnification.
- w9-8 A diverging lens has a focal length of −8.00 cm. What is the nature of the image formed when the object is placed at a distance of 24.2 cm from the lens? a. virtual, upright, and diminished b. real, inverted, and diminished c. virtual, upright, and enlarged d. real, inverted, and enlargedA 2-stage rocket is fired from rest. Its acceleration data are shown in the graph below. Plot the v-t and s-t graphs describing the motion of the rocket-clearly showing the shape of the curve (or add a note) and values at inflection points. Show any calculations as well. Then find the velocity of the rocket and its elevation after 20 seconds of flight. a (m/s?) 25 18 (s) 15 204-
- A concave mirror on the left is separated from a converging lens on the right by 50 cm. An object is placed 20.0 cm to the right of a concave mirror with focal length 12.0 cm and 30.0 cm to the left of a converging lens with focal length 10.0 cm, what would be the magnification factor created by both the mirror and lens. 1. do not have enough information to do a calculation 2.one 3.two 4. none of the given choices3. Given: A concave mirror has a focal length of 14 cm and a center of curvature of 28cm. An object is placed on the principal axis 17.5 cm from the mirror. Find: b. Construct the ray diagram. Is the image: a. Real or Virtual Upright or Inverted Large or Smaller than the Object Solution:3. In order to see an upright and magnified virtual image using a converging (positive) lens with a focal length of f, the object distance (d) must be: A. 0