Author Question: An object 1.25 cm tall is placed 100 cm in front of a convex lens with a focal length of magnitude ... (Read 141 times)

Chelseaamend · **on:** Jul 29, 2018

An object 1.25 cm tall is placed 100 cm in front of a convex lens with a focal length of magnitude 50 cm. A concave lens with a focal length of magnitude 20 cm is placed 90 cm beyond the first lens.

Where is the final image located?
A) 10 cm in front of the second lens
B) 20 cm past the second lens
C) 17 cm past the second lens
D) 10 cm past the second lens
E) 20 cm in front of the second lens

Question 2

An object 1.80 cm tall is placed 100 cm in front of a diverging lens having a focal length of magnitude 25 cm.

A converging lens with a focal length of magnitude 33.33 cm is placed 30 cm past the first lens. What is the lateral magnification of this system of lenses?
A) 2.5
B) -2.5
C) -0.40
D) 1.0
E) 0.40