Military Nursing Service (MNS) Entrance Physics Syllabus

Physics syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Physics in Military Nursing Service (MNS) Entrance, not a summary of it.

1. 1

   Mechanics and Properties of Matter

   6 topics

   • Units, Dimensions and Measurement
     • SI units and fundamental quantities
     • Dimensional analysis and applications
     • Errors in measurement and significant figures
   • Kinematics
     • Motion in a straight line and equations of motion
     • Projectile motion and relative velocity
     • Vectors and their resolution
   • Laws of Motion
     • Newton's three laws and momentum
     • Friction and its applications
     • Circular motion and centripetal force
   • Work, Energy and Power
     • Work-energy theorem
     • Conservation of energy and collisions
   • Gravitation
     • Newton's law of gravitation
     • Kepler's laws and satellite motion
     • Escape and orbital velocity
   • Properties of Solids and Fluids
     • Elasticity and stress-strain
     • Surface tension and viscosity
     • Bernoulli's principle and Pascal's law
2. 2

   Heat and Thermodynamics

   3 topics

   • Thermal Properties of Matter
     • Thermal expansion and calorimetry
     • Modes of heat transfer
   • Kinetic Theory of Gases
     • Gas laws and ideal gas equation
     • Degrees of freedom and equipartition of energy
   • Laws of Thermodynamics
     • First law and internal energy
     • Second law and entropy
     • Thermodynamic processes
3. 3

   Oscillations and Waves

   3 topics

   • Simple Harmonic Motion
     • Equations of SHM and energy
     • Simple pendulum and spring systems
   • Wave Motion
     • Transverse and longitudinal waves
     • Superposition and standing waves
   • Sound
     • Doppler effect
     • Beats and resonance
4. 4

   Electricity and Magnetism

   4 topics

   • Electrostatics
     • Coulomb's law and electric field
     • Electric potential and capacitance
     • Gauss's law
   • Current Electricity
     • Ohm's law and resistance
     • Kirchhoff's laws and circuits
     • Wheatstone bridge and potentiometer
   • Magnetic Effects of Current
     • Biot-Savart and Ampere's law
     • Force on a moving charge and conductor
   • Electromagnetic Induction
     • Faraday's and Lenz's laws
     • Self and mutual inductance
     • Alternating current and circuits
5. 5

   Optics and Modern Physics

   5 topics

   • Ray Optics
     • Reflection and refraction
     • Lenses, mirrors and optical instruments
   • Wave Optics
     • Interference and Young's double slit
     • Diffraction and polarization
   • Dual Nature of Matter and Radiation
     • Photoelectric effect
     • de Broglie wavelength
   • Atoms and Nuclei
     • Bohr's model and atomic spectra
     • Radioactivity and nuclear reactions
   • Semiconductor Electronics
     • Diodes and rectifiers
     • Transistors and logic gates

Physics flashcards for Military Nursing Service (MNS) Entrance

24 of 52 cards from the Physics deck — real questions with worked answers.

1. What are the seven SI base quantities and their units?

   Length (metre), Mass (kilogram), Time (second), Electric current (ampere), Temperature (kelvin), Amount of substance (mole), Luminous intensity (candela).

2. State the principle of homogeneity of dimensions.

   In a physically correct equation, the dimensions of every term on both sides must be the same. It is used to check correctness of equations and to derive relations.

3. What is the dimensional formula of force, work/energy, and power?

   Force = [M L T^-2]; Work/Energy = [M L^2 T^-2]; Power = [M L^2 T^-3].

4. Distinguish between accuracy and precision in measurement.

   Accuracy is how close a measured value is to the true value; precision is how close repeated measurements are to each other (reproducibility), independent of correctness.

5. Define average velocity and instantaneous velocity.

   Average velocity = total displacement / total time. Instantaneous velocity is the limit of average velocity as the time interval approaches zero, i.e. dx/dt.

6. Write the three equations of motion for uniform acceleration.

   v = u + at; s = ut + ½at^2; v^2 = u^2 + 2as (where u = initial velocity, v = final velocity, a = acceleration, s = displacement, t = time).

7. For projectile motion, give the formulas for time of flight, maximum height, and horizontal range.

   Time of flight T = 2u sinθ / g; Max height H = u^2 sin^2θ / 2g; Range R = u^2 sin2θ / g. Range is maximum at θ = 45°.

8. State Newton's three laws of motion.

   1st: A body remains at rest or in uniform motion unless acted on by a net external force (inertia). 2nd: F = ma (rate of change of momentum). 3rd: Every action has an equal and opposite reaction.

9. State the law of conservation of linear momentum.

   In the absence of an external force, the total linear momentum of a system remains constant. For a collision: m1u1 + m2u2 = m1v1 + m2v2.

10. What is the difference between static, kinetic (limiting), and rolling friction?

    Static friction acts on a body at rest (up to a maximum = limiting friction); kinetic (sliding) friction acts on a moving body and is usually less than limiting friction; rolling friction is much smaller and acts on a rolling body.

11. Define centripetal force and give its formula.

    The force directed toward the centre of a circular path that keeps a body moving in the circle. F = mv^2/r = mω^2r.

12. State the work-energy theorem.

    The net work done by all forces on a body equals the change in its kinetic energy: W_net = ΔKE = ½mv^2 - ½mu^2.

13. Give the formulas for kinetic energy, gravitational potential energy, and elastic PE of a spring.

    KE = ½mv^2; Gravitational PE = mgh; Spring PE = ½kx^2.

14. Distinguish between elastic and inelastic collisions.

    In elastic collisions both momentum and kinetic energy are conserved. In inelastic collisions momentum is conserved but kinetic energy is not (some is lost as heat/sound); in a perfectly inelastic collision bodies stick together.

15. Define power and give its SI unit and the relation P = F·v.

    Power is the rate of doing work, P = W/t. SI unit is the watt (W = J/s). Instantaneous power P = F·v (dot product of force and velocity).

16. State Newton's law of universal gravitation.

    Every two point masses attract each other with a force F = G m1 m2 / r^2, directed along the line joining them, where G = 6.67×10^-11 N m^2 kg^-2.

17. Give the formulas for escape velocity and orbital velocity (near Earth's surface).

    Escape velocity v_e = √(2gR) = √(2GM/R) ≈ 11.2 km/s. Orbital velocity v_o = √(GM/r) = √(gR) for a low orbit; v_e = √2 × v_o.

18. State Kepler's three laws of planetary motion.

    1st (Law of orbits): planets move in ellipses with the Sun at one focus. 2nd (Law of areas): the line joining a planet to the Sun sweeps equal areas in equal times. 3rd (Law of periods): T^2 ∝ a^3.

19. How does acceleration due to gravity g vary with height and depth?

    At height h: g_h = g(1 - 2h/R) (for h << R). At depth d: g_d = g(1 - d/R). g is maximum at the surface and zero at the Earth's centre.

20. Define stress, strain, and Young's modulus.

    Stress = force/area (N/m^2); Strain = change in dimension / original dimension (dimensionless); Young's modulus Y = longitudinal stress / longitudinal strain.

21. State Hooke's law.

    Within the elastic limit, stress is directly proportional to strain. The constant of proportionality is the modulus of elasticity.

22. State Pascal's law and Archimedes' principle.

    Pascal's law: pressure applied to an enclosed fluid is transmitted undiminished in all directions. Archimedes' principle: a body immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced.

23. State Bernoulli's theorem.

    For steady, non-viscous, incompressible flow, P + ½ρv^2 + ρgh = constant along a streamline (the sum of pressure, kinetic, and potential energy per unit volume is constant).

24. What is surface tension, and how does capillary rise depend on tube radius?

    Surface tension is the force per unit length acting along the surface of a liquid (energy per unit area). Capillary rise h = 2T cosθ / (rρg), so h is inversely proportional to the tube radius r.

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