NAT I Medical Physics With Answers

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NAT I Medical Physics

Sr. # Questions Answers Choice
1 The average binding energy of a nucleon inside an atomic nucleus is about  8 MeV 8 eV 8 Joules 8 ergs
2 The de broglie wave corresponding to a particle of mass m and velocity v has a wavelength associated with it h/mv hm v mh/v m/hv
3 The structure of solids is investigated by using Cosmic Rays X-rays Intra red Radiation y-rays
4 The half life of a radio-isotope is 5 years The fraction of atoms decayed in this substance after 15 years will be 1 3/4 7/8 5/8
5 As the electron in Bohr orbit of hydrogen atom passes from stat n = 2 to n = 1 the kinetic energy K and potential energy U change as K two-fold,U also two-fold K four-fold,U also four-fold K four-fold,U two-fold
6 When a hydrogen atom is bombarded the atom is excited to the n = 4 state of hydrogen atom.The energy released when the atom falls from n = 4 state to the ground state is 1.275 eV 12.75 eV 5 eV 8 eV
7 The mass defect for the nucleus of helium is 0.0303 a.m.u What is the binding energy per nucleon for helium in MeV? 28 7 4 1
8 The nucleus 6C12 absorbs an energetic neutron and emits a beta particle (β) The resulting nucleus is <sub>7</sub>N<sup>14</sup> <sub>5</sub><span style="font-size: 14.44444465637207px;">B</span><sup>13</sup> <sub>7</sub><span style="font-size: 14.44444465637207px;">N</span><sup>13</sup> <sub>6</sub><span style="font-size: 14.44444465637207px;">N</span><sup>13</sup>
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