Question: Express your answer to three significant figures. A person's vision may be improved significantly by having the cornea reshaped with a laser beam, in

improved significantly by having the cornea reshaped with a laser beam, in

Express your answer to three significant figures. A person's vision may be improved significantly by having the cornea reshaped with a laser beam, in a procedure known as photorefractive keratectomy. The excimer laser used in these treatments produces ultraviolet light with a wavelength of 216 m nm. AE= 6.83 ? eV ! You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Previous Answers Request Answer Part B 7 of 10 Review How many photons from this laser are required to deliver an energy of 1.1810-13 to the cornea? Express your answer to three significant figures. x vx X X 10"

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