When four hydrogen nuclei fuse together to form a helium nucleus, then in this process
A
energy is absorbed.
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B
energy is liberated.
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C
absorption and liberation of energy depends upon the temperature.
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D
energy is neither liberated nor absorbed.
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Solution
The correct option is B energy is liberated. In the basic hydrogen fusion cycle four hydrogen nuclei (photons) come together to make a helium nucleus. This fusion cycle releases energy in the core of the star i.e., energy is liberated in this process