Jkbose class 12th Guess paperhttps://jkbose.universityscope.com/2024/12/jkbose-class-12th-guess-paper-2024-2025.html
Jkbose class 12th Guess paper 2024-25 are given below
IMPORTANT QUESTIONS - J.K. BOSE
State Gauss's law. Derive an expression for electric field due to Infinite line charge and infinite sheet [deduce Coulomb's law from gauss law and electric field due to conducting sphere]
Electric field due to dipole on axial and equatorial line
Potential due to dipole general expression
Derive an expression for Capacitance, principle of capacitor and expression for capacitance of parallel plate with or without dielectric
Derive an expression for the torque experienced by dipole in uniform electric field?
Explain equipotential surfaces and their characteristics?
What is meant by quantization of charge?
What is an electric dipole and electric dipole moment
State Coulomb's law express in vector form define unit charge
Properties of electric lines of force and define electric flux it's units
Work done in rotating a dipole in uniform electric field and its potential energy?
What is current, Drift velocity, find relation between current & drift velocity?
Ohm's Law, v-i curve, R = Temp. dependence of resistance, temp coefficient of resistance
A wire of resistance is stretched so that it's length become double, what is new resistance?
Emf and potential difference
State and explain Kirchhoff rules and obtain balance condition for Wheatstone bridge
Magnetic force acting on charged particle, its circular path and expression for radius and time period?
State biot sarvart law. Obtain expression for magnetic field due to circular coil Straight conductor
Torque on a current loop and construction and working of moving coil galvanometer define
Obtain expression for magnetic field due to Straight conductor?
Torque on a current loop and construction and working of moving coil galvanometer define
State ampere's circuit law. Apply it on straight conductor and solenoid
Difference between para, dia and ferromagnetic materials (properties) Domain theory of ferromagnetism
Construction and working of moving coil galvanometer? Also explain current sensitivity and voltage sensitivity?
Explain ampere circuit law? Also determine magnetic field because of: (i) Straight thin infinite current carrying conductor. (ii) Thick infinite current carrying Conductor. (iii) Solenoid (iv) Toroid
Lenz's law & prism formula What is dispersion of light. Discuss its Causes
What is angular dispersion & dispersive power?
What is compound microscope with the help of labelled diagram. Show image formation. Derive expression for its magnifying power
Explain construction and working of Astronomical Telescope. Derive expression for Magnifying power.
What is a wavefront and what are its various types.
State Huygens Principle and Explain the laws of reflection and refraction using Huygens principle.
Describe young's double slit experiment. How can we find the position of bright and dark bands. Write down expression for fringe width.
What is Diffraction of light? Explain diffraction due to single slit. What is width of central maximum
What are coherent sources of light. What are the conditions for sustained interference of light
Discuss Photoelectric effect and Einstein's Photoelectric equation.
Define the threshold Frequency, wavelength, Stopping potential, effect of frequency on stopping potential
Laws of Photoelectric emission
Discuss matter wave nature of particles and de-Broglie relation.
Postulates of Bohr's model and expression for radius and energy
Binding energy and binding energy curve and its variation with mass number
Define Nuclear fission and Nuclear fusion reactions
On the basis of Band Theory of solids, Explain difference between conductors, semiconductors an insulator.
Define nuclear force and its properties
What is doping. Discuss extrinsic and intrinsies semiconductor
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