Q. The power obtained in a reactor using $U^{235}$ disintegration is $1000\ kW$. The mass decay of $U^{235}$ per hour is
A) 1 microgram
B) 10 microgram
C) 20 microgram
D) 40 microgram
Explanation
(d) $E = mc^{2}$
$1000 \times 10^{3} \times 3600 = m\left( 3 \times 10^{8} \right)^{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.