Draw a ray diagram of an astronomical telescope in the normal adjustment position. Write down the expression for its magnifying power. State two drawbacks of this type of telescope.

Asked by Topperlearning User | 11th Jun, 2014, 11:01: AM

Expert Answer:

In normal adjustment the final image is at infinity, to have large magnifying power ,fo must be as large as practically possible while fe has to be kept small.The magnifying power is the minimum and its field of view is small.

Answered by  | 11th Jun, 2014, 01:01: PM