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Q. 40

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
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Short Answer

Modern microscopes are more likely to use a camera than human viewing. This is accomplished by replacing the eyepiece in Figure 35.14 with a photo-ocular that focuses the image of the objective to a real image on the sensor of a digital camera. A typical sensor is 22.5 mm wide and consists of 5625 4.0@mm@ wide pixels. Suppose a microscopist pairs a 40* objective with a 2.5* photo-ocular.

a. What is the field of view? That is, what width on the microscope stage, in mm, fills the sensor?

b. The photo of a cell is 120 pixels in diameter. What is the cell’s actual diameter, in mm?

See the step by step solution

Step by Step Solution

Part (a) step 1 Given Information

That is, what width on the microscope stage, in mm

part (b) step 2 Calculation

The photo of a cell is 120 pixels in diameter.

part (c) step 3 Simplify 

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