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The number of atoms of a radioactive substance at t = 0 is 8 × 104. Its halflife period is 4 years. The number of atoms left undecayed will be 1 × 104 after an interval of

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Modern physics is a branch of physics that deals with the post-Newtonian concepts in the world of physics. It is based on the two major breakthroughs of the twentieth century: Relativity and Quantum Mechanics. Quantum effects typically involve distances related to atoms.


The number of atoms of a radioactive substance at t = 0 is 8 × 104. Its halflife period is 4 years. The number of atoms left undecayed will be 1 × 104 after an interval of






 
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