Lasik eye surgery uses pulses of laser light to shave off, Physics

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Lasik eye surgery uses pulses of laser light to shave off

Question: LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. A typical LASIK laser emits a 1.0mm diameter laser beam with a wavelength of 193 nm . Each laser pulse lasts 19 ns and contains 1.4 mJ of light energy.

Part A: What is the power of one laser pulse?

Part B: During the very brief time of the pulse, what is the intensity of the light wave?

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Physics: Lasik eye surgery uses pulses of laser light to shave off

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Physics: Lasik eye surgery uses pulses of laser light to shave off

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