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. What is refraction?
- The direction of a wave is affected by the medium it passes through
- The speed of a wave being affected by the medium it passes through
- The angle of a wave is affected by the medium it passes through
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)
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