An x-ray photon has energy of 4.1 × 10-15 J, a. What is the frequency of the x-ray? b. What is its wavelength?
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An x-ray photon has energy of 4.1 × 10-15 J, a. What is the frequency of the x-ray? b. What is its wavelength in water?
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Answer:
E = hf, where h = Planck's constant. Plug in E, plug in h, solve for f. E = hc/lambda where c = speed of light and lambda = wavelength. Plug in the knowns, solve for lambda. Or use c = f*lambda, which is how you get the second one from the first. Plug in the knowns, solve for lambda.
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