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Physics / College Physics 1 / Chapter 26 / Problem 39

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

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Integrated Concepts (a) During laser vision correction, a

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Problem 39PE

Integrated Concepts (a) During laser vision correction, a brief burst of 193 nm ultraviolet light is projected onto the cornea of the patient. It makes a spot 1.00 mm in diameter and deposits 0.500 mJ of energy. Calculate the depth of the layer ablated, assuming the corneal tissue has the same properties as water and is initially at 34.0ºC . The tissue’s temperature is increased to 100ºC and evaporated without further temperature increase. (b) Does your answer imply that the shape of the cornea can be finely controlled?

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QUESTION:

Problem 39PE

Integrated Concepts (a) During laser vision correction, a brief burst of 193 nm ultraviolet light is projected onto the cornea of the patient. It makes a spot 1.00 mm in diameter and deposits 0.500 mJ of energy. Calculate the depth of the layer ablated, assuming the corneal tissue has the same properties as water and is initially at 34.0ºC . The tissue’s temperature is increased to 100ºC and evaporated without further temperature increase. (b) Does your answer imply that the shape of the cornea can be finely controlled?

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Solution 39PE

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