NEET-XII-Physics

46: The Nucleus

with Solutions - page 2
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  • #8
    Two protons are kept at a separation of 10 nm. Let Fn and Fe be the nuclear force and the electromagnetic force between them.
    (a) Fe = Fn
    (b) Fe >> Fn
    (c) Fe << Fn
    (d) Fe and Fn differ only slightly.
    digAnsr:   b
    Ans : (b) Fe >> Fn
    Two protons exert strong attractive nuclear force and repulsive electrostatic force on each other. Nuclear forces are short range forces existing in the range of a few fms. Therefore, at a separation of 10 nm, the electromagnetic force is greater than the nuclear force, i.e. Fe >> Fn.
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