Describe a reflecting type telescope. What are its advantage over the refracting telescope ?

Reflecting Telescope

(a) Draw a ray diagram showing the formation of image by a reflecting telescope (b) Write two advantages of a reflacting telescope over a refracting telescope .

A reflecting telescope utilizes

Reflecting telescope consists of

Draw a schematic ray diagram of reflecting telescope showing how rays coming from a distant object are received at the eye - piece . Write its two important advantage over a refracting telescope.

What is natural gas? What are its advantages over other fuels?