Q. In a fission reaction $\ _{92}U^{236} = X^{117} + Y^{117} + n + n$, the binding energy per nucleon of $X$ and $Y$ is 8.5 MeV, whereas of $U^{236}$is 7.6 MeV.The total energy liberated will be about

A) 200 keV
B) 2 MeV
C) 200 MeV
D) 2000 MeV
Explanation

(c) Energy liberated
$= 2 \times 117 \times 8.5 - 236 \times 7.6$
$= 1989 - 1793.6$
$= 195.4\ MeV \approx 200\ MeV$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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