A beam of blue light, whose wavelength in vacuum is λvacuum = 510nm, is incident onto a transparent material material n=2. What is its wavelength λ and frequency f inside the material? a. 510nm, (3/1020) x 1017 Hz b. 510nm, (3/510) x 1017 Hz c. 510nm, (3/255) x 1017 Hz d. 255nm, (3/510) x 1017 Hz e. 255nm, (3/255) x 1017 Hz

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