Physics

Problem

An astronomical telescope has an angular magnification of magnitude 5 for distant objects. The separation between the objective and the eyepiece is 36 cm and the final image is formed at infinity. Find the focal length

f_0

of the objective and the focal length

f_e

of the eyepiece. a.

f_0 = 45

cm and

f_e = -9

cm b.

f_0 = 50

cm and

f_e = 10

cm c.

f_0 = 7.2

cm and

f_e = 5

cm d.

f_0 = 30

cm and

f_e = 6

cm.

Browse the problem library