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Question Bank of Engg. PHYSICS_KAS -101T/201T co3, Unit, , , , (Quantum Mechanics), , , , SHORT ANSWER TYPE QUESTIONS:, Low Difficulty level Questions, , Define Wien’s law ., , Write the assumptions of Planck’s hypothesis., , What do you mean by wave —particle duality?, , Write down the time-independent and time-dependent Schrodinger’s wave equation., What is Compton effect?, , Find the de Broglie wavelength for an electron accelerated through a potential of 50 V., , PUPYDN, , Average Difficulty level Questions, , 7. What is the difference between electromagnetic wave and matter wave?, 8. Determine the de-Broglie wavelength of photon., 9. What is Born interpretation of wave function., , 10. What is Compton Compton Shift?, High Difficulty level Questions, , 11. Interpret Bohr’s quantization rule on the basis of de-Broglie concept of matter wave., 12. Discuss the physical significance of a wave function., 13. Write down the expressions for energy Eigen value and Eigen function for an electron in ground state in, , a 1-D potential box., , LONG ANSWER TYPE QUESTIONS:, Low Difficulty level Questions, , 1. What is de-Broglie hypothesis of matter waves? Derive the expression of de-Broglie wavelength for a, material particle., , Derive time independent Schrodinger’s wave equation for a particle., , Derive time dependent Schrodinger’s wave equation for a particle., , An electron has a de-Broglie wavelength of 2x10"? m. calculate its kinetic energy of de Broglie waves., Find the lowest energy level and momentum of an electron in 1-D potential well of width 2 A., , wPyhn, , Average Difficulty level Questions, , 6. Derive time independent Schrodinger’s wave equation for a particle. What happens if the particle is, free?, , 7. What is Compton effect? Derive Compton shift AA = a —cos8)., 0, , 8. The wave function for a certain particle is Y=Acos? x for -1/2<x<z/2. Find the value of A., 9. Derive Planck radiation law. How that Planck formula for energy distribution in a thermal spectrum is, applicable for all wavelength., 10. (a) Show that a particle of rest mass mo and kinetic energy K has a de Broglie wavelength given as, he, , j K(K +2mc? |, , A=