SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it is not influenced by temperature, pressure and other physical factors
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it is influenced by temperature, pressure and other physical factors
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it can change to other elements
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it can happen anywhere
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Detailed explanation-1: -Radioactive decay is a random process, which means that it is impossible to predict when a particular radioactive nucleus will decay. It is also spontaneous-you cannot cause or influence the decay. However, with large numbers of nuclei it is possibly to statistically predict the behaviour of the entire group.
Detailed explanation-2: -Radioactivity is different from chemical change The fundamental point to stress here is that external conditions, such as temperature and pressure, have no effect on the activity of a radioactive source.
Detailed explanation-3: -As its name implies, radioactivity is the act of emitting radiation spontaneously. This is done by an atomic nucleus that, for some reason, is unstable; it “wants” to give up some energy in order to shift to a more stable configuration.
Detailed explanation-4: -Temperatures do not affect radioactivity at all. This has been tested many times and at extreme temperatures. Temperature is the average vibrational kinetic energy of the molecules of some object. This affects whole atoms or molecules which vibrate with respect to each other.