Q. One milligram of matter converted into energy will give
A) $90\ J$
B) $9 \times 10^{3}\ J$
C) $9 \times 10^{10}\ J$
D) $9 \times 10^{5}\ J$
Explanation
(c) $E = \mathrm{\Delta}mc^{2} = 10^{- 6} \times \left( 3 \times 10^{8} \right)^{2} = 9 \times 10^{10}J$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.