Which diagram represents the process of beta-plus decay?
A
B
C
D - AQA - A-Level Physics - Question 9 - 2017 - Paper 1
Question 9
Which diagram represents the process of beta-plus decay?
A
B
C
D
Worked Solution & Example Answer:Which diagram represents the process of beta-plus decay?
A
B
C
D - AQA - A-Level Physics - Question 9 - 2017 - Paper 1
Step 1
Identify the Beta-Plus Decay Process
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Answer
Beta-plus decay occurs when a proton in a nucleus converts into a neutron, emitting a positron (β⁺) and a neutrino (νₑ). The W+ boson mediates this process, converting the proton to a neutron.
Step 2
Analyze Each Diagram
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Answer
In the diagrams, we need to identify which representation shows the emission of a positron and a neutrino while a proton is transformed into a neutron. The correct diagram will display the W+ boson facilitating this transformation with the appropriate particles indicated.
Step 3
Select the Correct Diagram
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Answer
From the diagrams presented, option B accurately represents the process of beta-plus decay, showing the W+ boson mediating the proton emission of a positron and a neutrino.
