Lesson: Image Production Using Lenses
In this lesson, we will learn how to define the focal length of a lens, describing how light passed through convex and concave lenses forms real and virtual images.
Sample Question Videos
Worksheet: 13 Questions • 1 Video
A convex lens produces a real image that is projected on a screen, and then the screen is moved away from the lens, resulting in a blurred image, as shown in the diagram. Which of the following statements most correctly explains how the image projected onto the screen changes when the screen is moved?
A convex lens is used to produce a real image, as shown in the diagram. What is the focal length of the lens? Answer to one decimal place.
A convex lens is used to produce a real image, as shown in the diagram. Which of the points , , , , and is located at a distance from the lens that is equal to the lens’s focal length?