1.

The nuclide X undergoes alpha-decay and other nuclide Y, beta^(-) decay. Which of the following statements are correct? 1. The beta^(-1) particles emitted by Y may have widely different speeds. 2. The alpha-particles emitted by X may have widely different speeds 3. The alpha-particles emitted X will have almost same speed. 4. The beta-particles emitted by Y will have the same speed.

Answer»

1 and 3 are correct
2 and 3 are correct
2 and 4 are correct
1 and 4 are correct

Answer :a


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