Q156 / 160 · TS EAMCET 2023 (12 May Shift 1) · Physics
The energy equivalent to a mass of $1 \mathrm{~kg}$ is
- A$9 \times 10^{13} \mathrm{~J}$
- B$9 \times 10^{9} \mathrm{~J}$
- Correct answerC$9 \times 10^{16} \mathrm{~J}$
- D$9 \times 10^{6} \mathrm{~J}$
Solution
Energy equivalent of $1 \mathrm{~kg}$ of mass, $\mathrm{E}=\mathrm{mc}^2$
$\begin{aligned}
& =1 \times\left(3 \times 10^8\right)^2 \\
& =9 \times 10^{16} \mathrm{~J}
\end{aligned}$
Hence, the correct answer is option: 'C'.