Atomic physics questions | form six Physics

In an experiment, the activity of 1.6mg of radioactive potassium chloride (chloride of isotope K - 40) was found to be 180 s^-1​ . Taking molar mass of K - 40 Cl to be 0.075 kg mol^-1​ , find the:
(i) number of K - 40 atoms in the sample
(ii) half-life of K - 40.

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UNSOLVED

How long can an electric lamp of 200W be kept glowing by fusion of 3.0kg of deuterium
given that the fusion reaction taking place is ?

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UNSOLVED

What is meant by the following terms as used in nuclear Physics?

1. Mass defect
2. Binding energy.

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UNSOLVED

Disintegration of to give alpha particles can be represented by the following equation: . Use this equation to calculate :

1. The total energy released in the disintergration reaction.
2. The kinetic energy of alpha particles when the nucleus was at rest before disintegration.

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UNSOLVED

Elaborate two aspects on which fission reactions differ from fusion reactions.

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UNSOLVED