Virtual images from convex and concave lenses (including magnification)

12 questions

1. What is the formula for calculating the magnification of an image?
2. A lens that bends light rays away from each other is called a ___ lens.
3. The imaginary line through the centre of a lens, at right angles to the lens diameter, is called the …
4. These terms can be used to describe images made by lenses. Match each term with its meaning.
5. Which of these convex lens ray diagrams is correct?
6. The power of a lens is greater if …
7. This scale ray diagram shows the creation of an image by a lens. What is the magnification?
8. What is the principal focus for a concave lens?
9. Which of these statements are true about short-sightedness?
10. This scale ray diagram shows an object (an arrow), a concave lens and an image. Which of these words describe the image?
11. A convex lens makes a magnified image (Q) of an object (P). Which of these images correctly shows real rays (solid black lines) and virtual rays (dashed black lines)?
12. Which of these statements are correct?

License: OGL