One microgram of matter converted into energy will give

(a) 90 J                     (b) 9×103 J 
(c) 9×1010 J             (d) 9×105 J

(c) E=mc2=10-6×3×1082=9×1010 J

Difficulty Level:

  • 8%
  • 20%
  • 52%
  • 20%