Pick out the correct statements from the following.
(a)
Electron emission during β-decay is always accompained by neutrino
(b)
Nuclear force is charge independent
(c)
Fusion is the chief source of stellar energy
A
(a), (b) are correct
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B
(a), (c) are correct
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C
Only (a) is correct
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D
(b), (c) are correct
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Solution
The correct option is D (b), (c) are correct The correct answer is D. Since a β-decay is always accompanied by an anti-neutrino. Hence (a) is incorrect which only leaves us with option D.