Heat and Thermodynamics
Define first law of thermodynamics with its limitations
Adiabatic and isothermal condiations of thermodynamics
Wave and Optics
- Define wave motion.
- Derive the progressive wave equations in a medium.
- Starting with the definition of stationary waves, prove that the distance between any two consecutive nodes or antinodes in a stationary wave is λ2.
- Write an expression for the Newton’s formula for the velocity of sound in air. Explain the necessary correction made by Laplace.
- Define end correction.
- Show that, in open organ pipe, both odd and even harmonics can be produced.
- Define natural frequency.
- Describe an experiment to determine the velocity of sound in air by resonance air column tube method.
- Describe sound wave as a pressure wave and deduce an expression for the pressure amplitude.
- Define beats.
- Obtain an expression for the beat frequency produced by the superposition of two waves of slightly different frequencies.
- What is Doppler effect in sound?
- Obtain an expression for the apparent frequency of sound when both source and observer are moving towards each other.
- State Huygen’s law and use it to verify Snell’s law.
- Describe Michelson’s method to determine the velocity of light.
- Define coherent sources of light.
- Describe Young’s double slit experiment and show that the bright fringes and dark fringes are equally spaced.
- Define polarization of light.
- Show that, μ=tanθp, where the symbols have their usual meanings.
Electricy And Magnesium
- How can you convert a galvanometer into ammeter (or voltmeter)? Explain.
- Discuss the mechanism of metallic conduction.
- Derive a relation between current density and drift velocity. i.e., I=neAvd.
- State and apply Kirchoff’s rule to measure the unknown resistance of a wire by using wheatstone bridge circuit.
- State the principle of meter bridge.
- Describe how it is used to determine the resistance of a wire.
- What is the principle of potentiometer?
- Explain with necessary theory how you would determine the internal resistance of the internal resistance of a cell using this principle.
- What do you mean by thermo electric effect?
- Discuss the variation of thermo emf in a thermo couple with the change in temperature.
- State and explain Biot – Savart’s law.
- Use it to find the magnetic field due to a long straight current carrying conductor.
- State Ampere’s law.
- Deduce an expression for the force between two parallel current carrying wires.
- State Faraday’s law of electromagnetic induction.
- Derive an expression for the emf induced in a straight conductor moving at right angles to the direction of a uniform magnetic field.
- State Faraday’s law of electromagnetic induction.
- Deduce an expression for the emf induced in a coil rotating uniformly in a uniform magnetic field.
- Explain the principle and working of a transformer.
- Discuss the condition for resonant frequency of LCR alternating current circuit.
Modern Physics
- Describe about construction and working principle of Millikan’s oil drop experiment to determine the charge of an electron.
- Define cross field.
- Describe construction and working principle of J.J. Thomson’s experiment to determine specific charge of an electron.
- Define threshold frequency and work function of a metal.
- Explain Einstein’s photoelectric equation.
- Describe the experiment to determine the Planck’s constant.
- State Bohr’s postulates for atomic model.
- Derive the expression for radius of an electron bound to hydrogen atom
- Explain Bragg’s law of diffraction for X – rays.
- What is zener breakdown.
- How can a zener diode be used as a voltage regulator? Explain.
- Define mass defect.
- Explain the significance of graph of binding energy per nucleon versus atomic mass number.
- State the laws of radioactivity. Derive the relation between half-life period and decay constant.