Easy MCQ +4 / -1 PYQ · JEE Mains 2023

A free neutron decays into a proton but a free proton does not decay into neutron. This is because

  1. A neutron is an uncharged particle
  2. B neutron has larger rest mass than proton Correct answer
  3. C neutron is a composite particle made of a proton and an electron
  4. D proton is a charged particle

Solution

As neutron has more rest mass than proton it will require energy to decay proton into neutron.

About this question

Subject: Physics · Chapter: Atoms and Nuclei · Topic: Radioactivity

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