High-power lasers are used to cut and weld materials by focusing the laser beam to a very small spot. This is like using a magnifying lens to focus the sun's light to a small spot that can burn things. As an engineer, you have designed a laser cutting device in which the material to be cut is placed 6.0 cmcm behind the lens. You have selected a high-power laser with a wavelength of 1.06 μmμm. (This distance and wavelength are both very typical values.) Your calculations indicate that the laser must be focused to a 4.04.0-μmμm-diameter spot in order to have sufficient power to make the cut. What is the minimum diameter of the lens you must install?
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High-power lasers are used to cut and weld materials by focusing the laser beam to a very small spot. This is like using a magnifying lens to focus the sun's light to a small spot that can burn things. As an engineer, you have designed a laser cutting device in which the material to be cut is placed 6.0 cmcm behind the lens. You have selected a high-power laser with a wavelength of 1.06 μmμm. (This distance and wavelength are both very typical values.) Your calculations indicate that the laser must be focused to a 4.04.0-μmμm-diameter spot in order to have sufficient power to make the cut.
What is the minimum diameter of the lens you must install?
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