Question
Write any three characteristics of nuclear force.

Answer

(i) The nature of nuclear force is attractive.
(ii) Nuclear force is a short-range force. This force becomes negligible when the distance between nucleons is more than $1 \times 10^{-14}$ meters. This force remains effective only at distances less than this. Therefore it is called short range force.
(iii) Nuclear force is very strong. At a distance of $2 \times 10^{-15}$ meters the nuclear force is about 100 times the electric force.
(iv) The nature of nuclear force becomes repulsive at a distance of $0.5 \times 10^{-15}$ metres.
(v) Nuclear force does not depend on charge. Therefore, it occurs equally between proton-neutron or proton-proton or neutron-neutron. Due to this nature of nuclear force, the question of the stability of the nucleus is solved.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A semiconducting material has a band gap of 1eV. Acceptor impurities are doped into it which create acceptor levels 1meV above the valence band. Assume that the transition from one energy level to the other is almost forbidden if kT is less than $\frac{1}{50}$ of the energy gap. Also, if kT is more than twice the gap, the upper levels have maximum population. The temperature of the semiconductor is increased from 0K. The concentration of the holes increases with temperature and after a certain temperature it becomes approximately constant. As the temperature is further increased, the hole concentration again starts increasing at a certain temperature. Find the order of the temperature range in which the hole concentration remains approximately constant.
A charged capacitor of capacitance C is discharged through a resistance R. A radioactive sample decays with an average-life $\tau.$ Find the value of R for which the ratio of the electrostatic field energy stored in the capacitor to the activity of the radioactive sample remains constant in time.
How many time constants will elapse before the current in a charging RC circuit drops to half of its initial value? Answer the same question for a discharging RC circuit.
A person riding a car moving at 72km/h sounds a whistle emitting a wave of frequency 1250Hz. What frequency will be heard by another person standing on the road.
  1. In front of the car.
  2. Behind the car? Speed of sound in air = 340m/s.
In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.
A battery of $10 V$ and negligible internal resistance is connected across the diagonally opposite corners of a cubical network consisting of 12 resistors each of resistance $1 \Omega$ (Fig. 3.16). Determine the equivalent resistance of the network and the current along each edge of the cube.
Image
Derive an expression for the axial magnetic field of a finite solenoid of length 2l and radius r carrying current I. Under what condition does the field become equivalent to that produced by a bar magnet?
A network of four $10 \mu F$ capacitors is connected to a $500 V$ supply, as shown in Fig. 2.29. Determine (a) the equivalent capacitance of the network and (b) the charge on each capacitor. (Note, the charge on a capacitor is the charge on the plate with higher potential, equal and opposite to the charge on the plate with lower potential.)
Image
Two moving coil meters, M1 and M2 have the following particulars:
R1 = 10 Ω, N1 = 30,
A1 = 3.6 × 10–3 m2, B1 = 0.25 T
R2 = 14 Ω, N2 = 42,
A2 = 1.8 × 10–3 m2, B2 = 0.50 T
(The spring constants are identical for the two meters).
Determine the ratio of (a) current sensitivity and (b) voltage sensitivity of M2 and M1.
What is the advantage of using thick metallic strips to join wires in a potentiometer?