WBCHSE HS Physics Practice Questions - West Bengal Council Of Higher Secondary Education Class 12 Physics Exam

The rest mass energy of a particle with mass 1 mg (milligrams) is approximately:

9.0e+10 J 9.0e+07 J 3.0e+08 J 9.0e+13 J

Correct Answer:

9.0e+10 J

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