In LASIK surgery, a coherent UV light of 193 nm is focused on the corneal tissue. a. Explain the importance of using light that is all the same wavelength. b. Explain why UV light is more effective than infrared light at evaporating the corneal tissue

In LASIK surgery, a coherent UV light of 193 nm is focused on the corneal tissue. a. Explain the importance of using light that is all the same wavelength. b. Explain why UV light is more effective than infrared light at evaporating the corneal tissue

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter22: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 5P

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

In LASIK surgery, a coherent UV light of 193 nm is focused on the corneal tissue.

a. Explain the importance of using light that is all the same wavelength.

b. Explain why UV light is more effective than infrared light at evaporating the corneal tissue

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