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JEE Main2012PhysicsNuclear PhysicsActual

Which of the following Statements is correct?

Options

  1. AThe rate of radioactive decay cannot be controlled but that of nuclear fission can be controlled.
  2. BNuclear forces are short range, attractive and charge dependent.
  3. CNuclei of atoms having same number of neutrons are known as isobars.
  4. DWavelength of matter waves is given by de Broglie formula but that of photons is not given by the same formula

Correct answer

A. The rate of radioactive decay cannot be controlled but that of nuclear fission can be controlled.

Step-by-step solution

Radioactive decay is a continuous process. Rate of radioactive decay cannot be controlled. Nuclear fission can be controlled but not of nuclear fusion.

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