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8. A LASIK vision-correction system uses a laser that emits 10-ns-long pulses of light, each with 2.5ml of energy.
The laser beam is focused to a 0.85-mm-diameter circle on the cornea.
a. What is the electric field amplitude of the light wave at the cornea?
b. What is the magnetic field amplitude of the light wave at the cornea?
c. What is the radiation pressure that acts on the comea during a single pulse, assuming 100% of the light
is absorbed?

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