Question

One milligram of matter is converted into energy. The energy released will be

Answer 1

Answer:

Here, m = 1 mg = `1 xx 10^(-3) g = 1 xx 10^(-6)` kg <br> According to Einstein mass-energy equivalence <br> `E = mc^2` <br> where c is the speed of light in vacuum <br> `therefore` `E=(1xx 10^(-6) kg)(3 xx 10^8 m s^(-1))=9 xx 10^(10)J`