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1) Briefly describe what a reflecting and refracting telescope is and does? A refracting telescope works just like a magnifying glass. It uses a convex glass lens (to bend light and bring it into focus. This lens is thicker in the centre than it is toward its edges, which bends the light more at the edge of the lens than light coming through the centre. This allows all of the light to come together at a focus point. The point of focus is where the image is created. Refracting telescopes have two main problems-images are not always clear because the light is being bent and the size of the lens is limited (which limits the power of the telescope). Reflecting telescopes use curved mirrors instead of convex lenses to collect and focus light. A large concave mirror (the centre is thinner than the edges) collects and reflects the light to make an...

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