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(a) A certain medical machine emits x-rays with a minimum wavelength of 0.02 nm. One day, the machine has an electrical problem and the voltage applied to the x-ray tube decreases to 78% of its normal value. Now what is the minimum x-ray wavelength produced by the machine?

lmin = ___________ nm

(b) What is the maximum x-ray energy this machine (with electrical problems) can produce?

Emax = _____________ eV

E = ____________ eV

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