A-LevelPhysicsNuclear physics9702/12 · May/June 2012 · Q391 Mark
Nuclear decay is both spontaneous and random in nature. Which row gives the correct experimental evidence for these properties?
Aspontaneous nature of decay: the decay rate is not affected by pressure, random nature of decay: the decay rate is not affected by temperature
Bspontaneous nature of decay: the decay rate is not affected by pressure, random nature of decay: the rate at which radiation is received at a counter fluctuates
Cspontaneous nature of decay: the decay rate is not affected by temperature, random nature of decay: the decay rate is not affected by pressure
Dspontaneous nature of decay: the rate at which radiation is received at a counter fluctuates, random nature of decay: the decay rate is not affected by pressure
✓ Correct answer
B: spontaneous nature of decay: the decay rate is not affected by pressure, random nature of decay: the rate at which radiation is received at a counter fluctuates
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