MCQ
One microgram of matter converted into energy will give
- A$90 J$
- B$9 \times {10^3}\,J$
- ✓$9 \times {10^{7}}\,J$
- D$9 \times {10^5}\,J$
✓
Answer
Correct option: C.
$9 \times {10^{7}}\,J$
c
(c) $E = \Delta m{c^2} = {10^{ - 9}} \times {(3 \times {10^8})^2} = 9 \times {10^{7}}J$
(c) $E = \Delta m{c^2} = {10^{ - 9}} \times {(3 \times {10^8})^2} = 9 \times {10^{7}}J$
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