Not yet checked 1 of 7 questions have not yet been compared with the official paper.
PART–II
Q. 2
(a)Derive an expression for the torque and potential energy of an electric dipole in an electric field. [10]
(b)Show that the energy density of a parallel plate capacitor with dielectric medium between them is directly proportional to the square of electric field intensity.
(c)In a microwave oven torque acting on an electric dipole is responsible for the production of heat. Comment. [4]
Not yet checked
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Q. 3
(a)Discuss origin of magnetism by considering processes that creates magnetic field in an atom. [8]
(b)What are ferromagnetic domains? How does a typical ferromagnetic material is investigated by Hysteresis loop for technological applications? [8]
(c)How does effect of nuclear magnetism becomes important in nuclear magnetic resonance? [4]
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Q. 4
(a)Derive an expression for the time-independent Schrodinger wave equation in one dimension for a single particle. Define Hamiltonian operator. [10]
(b)Discuss various quantum numbers to describe the complete behavior of an electron in an orbital. [6]
(c)How slowly must an electron be moving for its deBroglie wave-length equal to 1mm? [4]
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Q. 5
(a)Discuss the behavior of particle trapped in infinitely deep well and show that the energy of particle inside the well is quantized. [10]
(b)Explain the terms wave function, probability density and normalization condition associated with quantum mechanics. [6]
(c)Find the expectation value of the momentum. [4]
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Q. 6
(a)What is an oscillator? How an LC oscillator works? Discuss Barkhaausian criteria for oscillations. [10]
(b)What is a feedback transistor? Differentiate negative feedback and positive feedback. [6]
(c)what are RC filters [4]
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Q. 7
(a)Discuss principle, construction and working of Nuclear Reactor. Define Breeder Reactor. [8]
(b)What is nuclear fusion? Describe Proton-Proton cycles for energy release in the Sun and Stars. [8]
(c)What is Q-Value of a nuclear reaction? [4]
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Q. 8
Write comprehensive notes on any TWO of the following
The 2019 CSS Physics paper set by the FPSC. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet.
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