For alpha-decay, what is the Q-value? (G

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Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

For alpha-decay, what is the Q-value? (Given that X decays into Y via alpha decay)

Options:

(m_x+m_y-m_He)c²

(m_x+m_y+m_He)c²

(m_x-m_y-m_He)c²

(-m_x+m_y-m_He)c²

Correct Answer:

(m_x-m_y-m_He)c²

Explanation:

Q-value defines the difference in total mass energy initially and total mass energy finally.