Thin Lens And Lens Maker Equations Video Lessons

Concept

# Problem: In (Figure 1) the camera lens has a 50mm focal length.How high is the man's well-focused image on the CCD detector?

###### FREE Expert Solution

Lens equation:
$\overline{)\frac{\mathbf{1}}{{\mathbit{s}}_{\mathbit{o}}}{\mathbf{+}}\frac{\mathbf{1}}{{\mathbit{s}}_{\mathbit{i}}}{\mathbf{=}}\frac{\mathbf{1}}{\mathbit{f}}}$
, where so is the object distance, si is the image distance, and f is the focal length.

Magnification:

$\overline{){\mathbf{m}}{\mathbf{=}}\frac{{\mathbf{h}}_{\mathbf{i}}}{{\mathbf{h}}_{\mathbf{o}}}{\mathbf{=}}{\mathbf{-}}\frac{{\mathbf{s}}_{\mathbf{i}}}{{\mathbf{s}}_{\mathbf{o}}}}$, where hi is the height of the image and ho is the height of the object.

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###### Problem Details

In (Figure 1) the camera lens has a 50mm focal length.

How high is the man's well-focused image on the CCD detector?