P7 Quiz: Light, telescopes and images

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  • Created by: Boma
  • Created on: 23-06-13 22:02

1. What is a converging (convex) lens?

  • A lens that causes parallel rays to converge to the focal point
  • A lens that causes parallel rays to diverge from the focal point
  • A lens that causes parallel rays to ignore the focal point
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Other questions in this quiz

2. Power of a lens is measured in...

  • ...dioptres
  • ...power level
  • ...volts

3. Magnification is worked out by...

  • ...focal length of objective lens/focal length of eyepiece lens
  • ...focal length of eyepiece lens/focal length of objective lens

4. Diffraction is...

  • ...when waves move through a narrow gap or past an obstacle, they spread out from the edges
  • ...when waves move through a narrow gap or past an obstacle, they diverge inwards from the edges

5. Power of a lens is worked out by...

  • ...1/focal length of lens (centimetres)
  • ...1/focal length of lens (metres)
  • ...1/focal length of lens (kilometres)

Comments

Miss KHP


Good quiz for OCR Physics. Great as you can check your answers straight away

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