Other questions in this quiz

2. How can you tell something is a real image?

  • it can be seen on a TV
  • the light can produce an image on the screen
  • it can be seen with a magnifying glass

3. What type of lens is used for long sighted people?

  • Convex/converging
  • Concave/Diverging

4. What is refractive index?

  • The refracted ray parallel to the principal focus
  • The ratio of speed to light in a vacuum to in the medium
  • the incident ray parallel to the principal focus

5. Pressure in a liquid is..

  • transmitted equally in all directions
  • hard to measure
  • difficult to see


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