P7 Quiz: Light, telescopes and images
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?- Created by: Boma
- Created on: 23-06-13 22:02
Other questions in this quiz
2. 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
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. Power of a lens is measured in...
- ...dioptres
- ...power level
- ...volts
5. 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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