AQA Astronomy - Optical Telescopes

A quiz about telescopes in Astronomy, Option A AQA A2

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1. Refracting telescopes are made using:

  • Piano-concave lenses
  • Diverging/concave lenses
  • Converging/convex lenses
  • Spectacle lenses
  • Positive meniscus lenses
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Other questions in this quiz

2. A refracting telescope uses one convex and one concave lens

  • False
  • True

3. Images seen through a telescope can be:

  • Real or virtual
  • Only real
  • Virtual or fake
  • Only fake
  • Only virtual

4. The focal point can be found by:

  • 1/v - 1/u
  • 1/(v+u)
  • 1/ (1/u x 1/v)
  • 1/ (1/u +1/v)
  • 1/ (1/v + u)

5. How far from the objective lens is the principle focus?

  • 15mm
  • The focal length of the eye lens
  • 12cm
  • The focal length of the objective lense
  • Half way between the two lenses

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