An Astronomical Refracting Telescope Is Made from Two Lenses $262 \mathrm {~cm}$

Multiple Choice

An astronomical refracting telescope is made from two lenses. The objective lens has a focal length of 114 cm, and the eyepiece lens has a focal length of 17.0 cm.
(a) What is the total length of the telescope?
(b) What is the angular magnification of the telescope?
(c) What is the magnification by turning the telescope around and looking through the objective
Lens first?

A) (a) $262 \mathrm {~cm}$
(b) $0.87$
(c) $1.15$
B) (a) $131 \mathrm {~cm}$
(b) $6.71$
(c) $0.15$
C) (a) $194 \mathrm {~cm}$
(b) $1.18$
(c) $0.85$
D) (a) $97 \mathrm {~cm}$
(b) $0.15$
(c) $6.71$