Q160 / 180 · KCET 2013 · Physics

Which one of the following is not correct?

  • A
    In forward biased condition diode conducts
  • B
    If the packing fraction is negative, the elelment is stable
  • C
    Binding energy is the energy equivalent to mass defect
  • Correct answer
    D
    Radioactive element can undergo spontaneous fission

Solution

We know that, (i) In forward biased condition diode conducts. (ii) Smaller the value of packing fraction, the element is more stable similarly if the packing fraction is negative the element is stable. (iii) Binding energy is the energy equivalent to mass defect. (iv) Very few radioactive element can undergo spontaneous fission but not each element.

Hence, the correct answer is option: 'D'.

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