JEE Mains · Physics · STD 12 - 13. Nuclei
The energy equivalent of \(1 \mathrm{~g}\) of substance is _______.
- A \(11.2 \times 10^{24} \mathrm{MeV}\)
- B \(5.6 \times 10^{12} \mathrm{MeV}\)
- C \(5.6 \mathrm{eV}\)
- D \(5.6 \times 10^{26} \mathrm{MeV}\)
Answer & Solution
Correct Answer
(D) \(5.6 \times 10^{26} \mathrm{MeV}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{E}=\mathrm{mC}^2\) \(\Rightarrow \mathrm{E}=\left(1 \times 10^{-3}\right) \times\left(3 \times 10^5\right)^2 \mathrm{~J}\) \(\Rightarrow \mathrm{E}=\left(10^{-3}\right)\left(9 \times 10^{16}\right)\left(6.241 \times 10^{18}\right) \mathrm{eV}\)…
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