In LASIK surgery, a laser is used to reshape the cornea of the eye to improve vision.

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In LASIK surgery, a laser is used to reshape the cornea of the eye to improve vision. The laser produces extremely short

\(\mathbb{N T}\) pulses of light, each containing \(1.0 \mathrm{~mJ}\) of energy.

a. In each pulse there are \(9.7 \times 10^{14}\) photons. What is the wavelength of the laser?

b. Each pulse lasts only \(20 \mathrm{~ns}\). What is the average power delivered to the eye during a pulse?

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College Physics A Strategic Approach

ISBN: 9780321907240

3rd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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