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Dear Sirs, AIEEE 2010, physics, Qno 15, one was to calculate the wavelength of photons .....and easy to calculate that 5 Nanomters. NCERT text book describes UV Spectrum upto 1 nanometer. I had my doubts but I went with what I had read on NCERT textbook......now all solved papers call this Xray.......could there be two correct answers, or should I take it that I am wrong....could one raise this issue and authorities would listen?
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