An Astronomical Telescope Has a Barrel Length of 33 Cm

question 8

Multiple Choice

An astronomical telescope has a barrel length of 33 cm and an angular magnification of 10.What are the focal lengths of the objective and the eyepiece in that order?

• A) 0.3 m, 3 m
• B) 30 cm, 3 cm
• C) 20 cm,13 cm
• D) 3 cm, 30 cm

---

Definitions:

Promoter

In an operon, a sequence of DNA where RNA polymerase binds prior to transcription.

Transcription

The process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).

Protein

Large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues essential for the structure, function, and regulation of the body's cells, tissues, and organs.

RNA

Ribonucleic acid, a molecule essential for various biological roles including coding, decoding, regulation, and expression of genes.