Question

Let Fpp, Fpn and Fnn denote the magnitudes of the net force by a proton on a proton, by a proton on a neutron and by a neutron on a neutron respectively. neglect gravitational force. When the separation is 1 fm.
(a) Fpp > Fpn = Fnn
(b) Fpp = Fpn = Fnn
(c) Fpp > Fpn > Fnn
(d) Fpp < Fpn = Fnn

Answer 1

Explanation:

• Neutrons and protons can be seen inside the nucleus, which apply robust attractive nuclear forces on one another, which has equal magnitude. Due to the positive charge of the protons, they repel each other.
• So, there will be a reduction of the net attractive force between two protons, but there will be a stronger nuclear force than the electrostatic force at a separation of 1 fm.

        Therefore, Fpp < Fpn = Fnn

         Here, Fpn, Fpp and Fnn signifies the below:

• Fpn - the net force magnitudes on a proton by a neutron
• Fpp - the net force magnitudes on a proton by a proton
• Fnn - the net force magnitudes on a neutron by a neutron