Simple and Reflecting Telescopes
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11 terms
Terms | Definitions |
|---|---|
 two converging lenses | What equipment does a Refracting Telescope use? |
| focus light from objective lens onto the eye | What does the eyepiece lens do? |
| captures rays of light and forms a real image on its focal point | What does the objective lens (of a Refracting Telescope) do? |
| the eyepiece lens spreads out the rays so that they leave at a wider angle and the light fills more of your retina. This produces a virtual image. | How is the image (of a Refracting Telescope) magnified? |
| it converges (focuses) towards one point | What happens to the direction of the incident ray (parallel to the axis of the mirror) as it is reflected off of a concave mirror? |
| parallel to the axis | What direction will a reflected ray be travelling in if the incident ray passes through the focal point? |
| converging lens and concave mirrors | What equipment does a Reflecting Telescope use? |
| a large concave mirror | What piece of equipment in a Reflecting Telescope collects the parallel rays of light from an object in space? |
| the light rays originate from very far away | Why are light rays almost parallel to the axis when they reach the mirror? |
| a smaller mirror in front of the larger mirror's focal point | Where does the larger mirror reflect the light towards? |
| through a hole in the larger mirror and towards the eyepiece lens | Where does the smaller mirror reflect the light? |
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