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Mx and My denote the atomic masses of t...

`M_x` and `M_y` denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay. The Q-value for a `beta^-` - decay is `Q_1` and that for a `beta^+` - decay is `Q_2`. If `m_e` denotes the mass of an electron , then which of the following statements is correct ?

A

`Q_1=(M_x-M_y)c^2` and `Q_2=(M_x-M_y-2m_e)c^2`

B

`Q_1=(M_x-M_y)c^2` and `Q_2=(M_x-M_y)c^2`

C

`Q_1=(M_x-M_y - 2m_e)c^2` and `Q_2=(M_x-M_y+ 2m_e)c^2`

D

`Q_1=(M_x-M_y +2m_e)c^2` and `Q_2=(M_x-M_y+ 2m_e)c^2`

Text Solution

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The correct Answer is:
a
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