Lasey eye surgery utilizes ultraviolet radiation with a wavelength around 197 nm

Question

Lasey eye surgery utilizes ultraviolet radiation with a wavelength around 197 nm.

a) what is the frequency in hertz of the ultraviolet radiation ***I GOT THIS ANSWER: 1.523*10^15

b)Assuming the precision, P, with which this electromagnetic radiation can shape the cornea is inversly proportional to wavelength (the shorter the wavelength, the higher the precision), how much more precise can this ultraviolet light be than the shortest wavelength of visible light, which is 380nm?

(3%) Problem 27: Laser eye surgery utilizes ultraviolet radiation with a wavelength around 197 nm. 50% Part (a) What is the frequency, in hertz, of the ultraviolet radiation? - 50% Part b Assuming the precision, P, with which this electromagnetic radiation can shape the cornea is inversely proportional to wavelength (the shorter the wavelength, the higher the precision), how much more precise can this ultraviolet light be than the shortest wavelength of visible light, which is 380 nm? Give your answer in % more precise. Grade Summary Deductions 0 Potential 100

Explanation / Answer

precision for 197 nm P197 = k/197

precision for 380 nm P380 = k/380

k = constant of proportionality

dP = P197 - P380 = k*(1/197 - 1/380) = 0.00244*k

dP/P380 = 0.00244*k/(k/380)

dP/P380 = 0.00244*380 = 0.927

percentage dP/P380 = 92.7 % <<<<---------answer

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