Modern Physics Ques 215
- If a star can convert all the He nuclei completely into oxygen nuclei. The energy released per oxygen nuclei is : (Mass of the helium nucleus is $4.0026$ $ amu$ and mass of oxygen nucleus is $15.9994$ $ amu$ )
$(2005,2 M)$
(a) $7.6 $ $MeV$
(b) $56.12 $ $MeV$
(c) $10.24 $ $MeV$
(d) $23.4 $ $MeV$
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Answer:
Correct Answer: 215.(c)
Solution:
Formula:
- $4\left({ } _2 He^{4}\right)={ } _8 O^{16}$
Mass defect, $\Delta m=\{4(4.0026)-15.9994\}=0.011 $ $amu$
$\therefore$ Energy released per oxygen nuclei
$ =(0.011)(931.48) $ $MeV=10.24$ $ MeV $
BETA
