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Question

Physics Question on Conservation of energy

One milligram of matter converted into energy, will give:

A

9 joule

B

9×1039\times {{10}^{3}} joule

C

9×1059\times {{10}^{5}} joule

D

9×10109\times {{10}^{10}} joule

Answer

9×10109\times {{10}^{10}} joule

Explanation

Solution

From mass energy equivalence ΔE=Δmc2\Delta E=\Delta m{{c}^{2}} =10−6×(3×108)2={{10}^{-6}}\times {{(3\times {{10}^{8}})}^{2}} =9×1010J=9\times {{10}^{10}}J