A refracting telescope consists of

Reflecting telescope consists of

Reflecting telescope consists of

Draw a labelled ray diagram of a refracting telescope. Define its magnifying power and write the expression for it. Write two important limitations of a refracting telescope over a reflecting type telescope.

Draw a labelled ray diagram of a refracting telescope. Define its magnifying power and write the expression for it.

If both the object and image are at infinite distances form a refracting telescope its magnifying power will be equal to

An astronomical telescope consists of two convex lenses of focal lengths 20 cm and 4 cm. For the nomal adjustment of the telescope, what is the angular magnification produced by the telescope ?

The astronomical telescope consists of objective and eye-piece. The focal length of the objective is

The astronomical telescope consists off objective and eye-piece.The focal length of the objective is

Answer the following question: What are the limitations of refracting telescope ? How these limitations were overcome?