UPSC Physics Atomic Physics Question Bank Modern physics and Sources of energy

  • question_answer
    Match the Column I and Column II.
      Column -1   Column - II
    [A] Isotopes (1) Mass number same but different atomic number
    [B] Isobars (2) Atomic number same but different mass number.
    [C] Isotones (3) Number of neutrons plus number of protons
    [D] Nucleons (4) Number of neutrons same but different atomic number
     

    A) [A] \[\to \] (3);   [B] \[\to \] (1);   [C] \[\to \] (2);   [D] \[\to \] (4)

    B) [A] \[\to \] (2);   [B] \[\to \] (1);   [C] \[\to \] (4);   [D] \[\to \] (3)

    C) [A] \[\to \] (1);   [B] \[\to \] (2);   [C] \[\to \] (3);   [D] \[\to \] (4)

    D) [A] \[\to \] (1);   [B] \[\to \] (3);   [C] \[\to \] (2);   [D] \[\to \] (4)

    Correct Answer: B


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