Asked by Dylan

1. A photographer uses a camera lens with focal length of 50.0 mm to photograph a tree that is 4.60 m tall. She wishes to fill her 24.0-mm slide with the tree.

(a) How far from the lens should the film be?
1/o + 1/24 = 1/50
600 + 25o = 24o
o = -600/13 or -46.15 mm
Therefore, the lens should be behind the film by 46.15 mm.

(b) What is the magnification of the image?
24/-46.15 = -0.52
Therefore, the magnification of the image is -0.52x.

This doesn't seem right. Am I doing something wrong?

2. The objective of a microscope has a focal length of 1.90 cm. An object is placed on the stage, 2.25 cm from the lens. The ocular has a focal length of 2.40 cm and is located 14.0 cm from the objective. What is the magnification of the image?

I am not really sure what to do with this one.
Answered by Anonymous
Are you a student doing online school?
Answered by Dylan
No I am not. Is there a reason you are asking me this?
Answered by Anonymous
Are you sure you're not in an online school and that you are at a physical school?
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