Other questions in this quiz

2. How are sound waves reflected?

  • Off walls
  • Using ultrasound
  • Surfaces off the atmosphere

3. What is Refraction?

  • Distance between the centre of the lens and the focal point
  • Bending of light rays at a surface
  • Forming images through telescopes

4. What are converging lenses used for?

  • To form images in telescopes, cameras, projectors, binoculars and our eyes
  • To form shiny surfaces
  • To reflect off the earths surface

5. What does a converging lens look like?

  • Fatter in the middle
  • Thinner in the middle
  • Straight


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