A standard 14.16-inch (0.360-meter) computer monitor is 1024 pixels wide and 768

Question

A standard 14.16-inch (0.360-meter) computer monitor is 1024 pixels wide and 768 pixels tall. Each pixel is a square approximately 281 micrometers on each side. Up close, you can see the individual pixels, but from a distance they appear to blend together and form the image on the screen.

Part A

If the maximum distance between the screen and your eyes at which you can just barely resolve two adjacent pixels is 1.30 meters, what is the effective diameter d of your pupil? Assume that the resolvability is diffraction-limited. Furthermore, use ?=550 nanometers as a characteristic optical wavelength.

Express your answer in millimeters to three significant figures.

Explanation / Answer

d = 3.10 mm

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