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NEET Sample Paper NEET Sample Test Paper-35

  • question_answer
    \[{{M}_{P}}\] and \[{{M}_{X}}\] are masses of proton and neutron, respectively at rest. When they combine to form deuterium nucleus. The mass of the nucleus will be:

    A)  Less than \[{{M}_{P}}\]

    B)  Less than \[({{M}_{P}}+{{M}_{N}})\]

    C)  Less than \[({{M}_{P}}+2{{M}_{N}})\]

    D)  greater than \[({{M}_{P}}+2{{M}_{N}})\]

    Correct Answer: B

    Solution :

    Whenever their is fusion or fusion of nucleoids and nuclei, some mass is lost (known as mass defect)which convert in the form of energy. Hence net mass of product is slightly less than that of initial substance.


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