Isha Lohan posted an Question
December 06, 2020 • 17:51 pm 30 points
  • IIT JAM
  • Physics (PH)

Previous year iit jam phq.38 in the x-ray diffraction pattern recorded for a simple cubic solid (lattice parameter a=1 a) using x rays of wavelength 1 a,

Q.38 In the X-ray diffraction pattern recorded for a simple cubic solid (lattice parameter a=1 A) using X rays of wavelength 1 A, the first order diffraction peak(s) would appear for the (A) (100) planes (C)(210) planes (B) (112) planes (D) (220) planes 9/13 PH

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    Saurabh 1 best-answer

    Just put the options and values of h, k and l, you will see that for (112), (210) and (220) , value of sintheta is greater than 1 which is not in range of sintheta..... So correct answer will be (A) only...

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