Question

One milligram of matter convert into energy will give(a) 90 joule(b) 9 × 10³ joule(c) 9 × 10⁵ joule(d) 9 × 10¹⁰ joule

Answer 1

Answer:

Energy, E = 9 × 10¹⁰ joule

Explanation:

We have to find the amount of energy given in the conversion of 1 milligram of matter.

Using Einstein's mass- energy equivalence.

$E=mc^2$

$E=10^{-6}\ kg\times (3\times 10^8)^2$

$E=9\times 10^{10}\ J$

One milligram of matter convert into energy will give 9 × 10¹⁰ joule.

Hence, this is the required solution.

Answer 2

Answer:E=mcsquare

Explanation:

1 mill gram =1/1000000,C=3×10 power 8 ,by substituting we get E=9×10power 10