Advertisements
Advertisements
Question
Which of the following statements about nuclear forces is not true?
Options
The nuclear force between two nucleons falls rapidly to zero as their distance is more than a few femtometres.
The nuclear force is much weaker than the Coulomb force.
The force is attractive for distances larger than 0.8 fm and repulsive if they are separated by distances less than 0.8 fm.
The nuclear force between neutron-neutron, proton-neutron and proton-proton is approximately the same.
Advertisements
Solution
The nuclear force is much weaker than the Coulomb force.
Explanation:
As we know the nuclear force is a strong force, they are strongest in magnitude. They are short-range because the distance between the nucleon is 0.7 fermi which is very small.
They are charged independently. They result in the interaction of every nucleon with the nearest limited number of nuclear.
APPEARS IN
RELATED QUESTIONS
Suppose the second charge in the previous problem is −1.0 × 10−6 C. Locate the position where a third charge will not experience a net force.
A hydrogen atom contains one proton and one electron. It may be assumed that the electron revolves in a circle of radius 0.53 angstrom (1 angstrom = 10−10 m and is abbreviated as Å ) with the proton at the centre. The hydrogen atom is said to be in the ground state in this case. Find the magnitude of the electric force between the proton and the electron of a hydrogen atom in its ground state.
Two identical balls, each with a charge of 2.00 × 10−7 C and a mass of 100 g, are suspended from a common point by two insulating strings, each 50 cm long. The balls are held at a separation 5.0 cm apart and then released. Find.
(a) the electric force on one of the charged balls
(b) the components of the resultant force on it along and perpendicular to the string
(c) the tension in the string
(d) the acceleration of one of the balls. Answers are to be obtained only for the instant just after the release.
Two identical pith balls, each carrying a charge q, are suspended from a common point by two strings of equal length l. Find the mass of each ball if the angle between the strings is 2θ in equilibrium.
A water particle of mass 10.0 mg and with a charge of 1.50 × 10−6 C stays suspended in a room. What is the magnitude of electric field in the room? What is its direction ?
Two identical particles, each with a charge of 2.0 × 10−4 C and mass of 10 g, are kept at a separation of 10 cm and then released. What would be the speed of the particles when the separation becomes large?
Two particles of masses 5.0 g each and opposite charges of +4.0 × 10−5 C and −4.0 × 10−5 C are released from rest with a separation of 1.0 m between them. Find the speeds of the particles when the separation is reduced to 50 cm.
Two point charges +3 µC and +8 µC repel each other with a force of 40 N. If a charge of -5 µC is added to each of them, then force between them will become ______.
The capacity of an isolate conducting sphere of radius R is proportional to
