Advertisements
Advertisements
Question
Two protons are kept at a separation of 10 nm. Let Fn and Fe be the nuclear force and the electromagnetic force between them.
Options
Fe = Fn
Fe >> Fn
Fe << Fn
Fe and Fn differ only slightly.
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Draw a plot of potential energy of a pair of nucleons as a function of their separations. Mark the regions where the nuclear force is (i) attractive and (ii) repulsive.
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.
Write two distinguishing features of nuclear forces.
Show that nuclear density is almost constant for nuclei with Z > 10.
Explain in detail the nuclear force.
Calculate the radius of the earth if the density of the earth is equal to the density of the nucleus. [mass of earth 5.97 x 1024 kg].
Relation between atomic number (Z), neutron number (N) and mass number (A) is ______.
The nuclei of isotopes of a given element differ from each other in their number of ______.
The gravitational force between a H-atom and another particle of mass m will be given by Newton’s law: `F = G(M.m)/r^2`, where r is in km and ______.
It is possible to understand nuclear fission on the basis of the:
Heavy stable nuclei have more neutrons than protons. This is because of the fact that.
O2 molecule consists of two oxygen atoms. In the molecule, nuclear force between the nuclei of the two atoms.
Which property distinguishes nuclear force from gravitational and electromagnetic forces?
