Reflecting and Refracting Telescopes
- Created by: alexda
- Created on: 17-05-14 17:26
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- Refracting and Reflecting Telescopes
- A refracting telescope if made up of an objective lens and an eyepiece lens.
- 1. The objective lens converges light to a focus to form a real image.
- 2. The rays of light from the real image enter the eyepiece.
- 3. The lens spreads the light rays so they leave at a wider angle than they had entered so the light rays fill more of your retina.
- 4. This makes the image look magnified.
- A reflecting telescope uses mirrors to collect light and an eyepiece.
- 1. A large concave mirror collects the parallel rays of light from an object.
- 2. The mirror reflects this light onto a different smaller mirror.
- 3. The second smaller mirror reflects light through a hole in the centre of the larger mirror. A real image is formed behind the mirror.
- 4. A converging eyepiece lens is used to magnify the image.
- A refracting telescope if made up of an objective lens and an eyepiece lens.
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