Lasers are used extensively in eye surgery to remove unwanted material from the eye or reshape the
Question:
Lasers are used extensively in eye surgery to remove unwanted “material” from the eye or reshape the eye’s lens. These lasers use pulses of very intense radiation to literally “blast” away material. These pulses are typically 10 ns long (108 s) and carry an energy of 2.0 mJ each.
(a) What is the power during one of these pulses?
(b) If this energy is delivered to a spot on the eye that is 1.0 mm in diameter, what is the intensity during a pulse?
(c) If the radiation has a wavelength of 350 nm, what is the electric field amplitude during a pulse?
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We can find the energy from the given power and time Th...View the full answer
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Related Book For 
College Physics Reasoning and Relationships
ISBN: 978-0840058195
2nd edition
Authors: Nicholas Giordano
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