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← ScienceWhich outcome occurs when fuel cools unevenly in fission?
A)Xenon-induced power oscillations emerge✓
B)Delayed neutron fraction rapidly declines
C)Moderator density feedback reverses polarity
D)Control rod effectiveness becomes amplified
💡 Explanation
Xenon buildup varies with flux profile during cooling, causing increased neutron absorption within the profile which reduces reactivity; it is xenon-induced power oscillations rather than a change in neutron fraction, because of location rather than element.
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