Conceptual Physics C2009 Guided Reading & Study Workbook Se
9th Edition
ISBN: 9780133647396
Author: Prentice Hall
Publisher: Prentice Hall
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Chapter 30, Problem 5A
To determine
To state: The minimum number of rays required to form an image.
Expert Solution & Answer
Explanation of Solution
Introduction:
A ray diagram is a schematic representation to draw the path of light rays which shows how they are incident and how they emerge. Its main aim is to let us identify the exact position of the image formed, its size, type of image formed and other characteristics of the image.
We have the following three convenient rays to draw a ray diagram:
- A ray parallel to principal axis: Such a ray which is incident parallel to the principal axis, passes through the focal point of lens whether it is concave or convex.
- A ray incident along the focus: Such a ray which is incident on the focal point of a lens, passes parallel to the principal axis in both the lenses.
- A ray incident along the optical centre: Such a ray which is incident along the optical centre, passes undeviated and is straight after refraction from the lens.
Out of these three rays, we require at least two rays to form image formation by a lens. At least two lines are required to show the intersection between them so if we draw a minimum of two rays from an object, it is easy for us to locate the position and nature of the image by looking at their intersection points.
Conclusion:
Hence, we need at least two rays to show image formation in a lens.
Chapter 30 Solutions
Conceptual Physics C2009 Guided Reading & Study Workbook Se
Ch. 30 - Prob. 1ACh. 30 - Prob. 2ACh. 30 - Distinguish between a virtual image and a real...Ch. 30 - There are three convenient rays commonly used in...Ch. 30 - Prob. 5ACh. 30 - Prob. 6ACh. 30 - What types of images are formed by converging...Ch. 30 - What types of images are formed by diverging...Ch. 30 - Prob. 9ACh. 30 - What is the function of the eyepiece in an...
Ch. 30 - What type of lenses are used in a compound...Ch. 30 - Which instrument—a telescope, a compound...Ch. 30 - Prob. 13ACh. 30 - Prob. 14ACh. 30 - Prob. 15ACh. 30 - Prob. 16ACh. 30 - Percy stands at different distances from a lens...Ch. 30 - Depending on the location of Percy relative to the...Ch. 30 - Here Percy is in front of a diverging lens....Ch. 30 - When you cover the top half of a camera lens, what...Ch. 30 - What will happen to the image projected onto a...Ch. 30 - Prob. 22ACh. 30 - How could you demonstrate that an image was indeed...Ch. 30 - Prob. 24ACh. 30 - In terms of focal length, how far is the camera...Ch. 30 - Can you photograph yourself in a mirror and focus...Ch. 30 - If you take a photograph of your image in a plane...Ch. 30 - Copy the three drawings in the figure. Then use...Ch. 30 - Maps of the moon are actually upside down. Why is...Ch. 30 - The real image produced by a converging lens is...Ch. 30 - In which case does light undergo the greater...Ch. 30 - In which case is refraction greater, light in...Ch. 30 - From water to glass, the change in the speed of...Ch. 30 - A whales eye uses hydraulics to move the lens of...Ch. 30 - Focal-length variations in birds and reptiles are...Ch. 30 - Prob. 36ACh. 30 - If you have ever watched a water strider or other...Ch. 30 - What is responsible for the rainbow-colored fringe...Ch. 30 - Waves overlap very little in the image of a...Ch. 30 - Prob. 40ACh. 30 - Prob. 41ACh. 30 - Determine the magnification power of a lens by...Ch. 30 - Make a pinhole camera, as illustrated in the...
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