1. Explain the failure of classical theory in explanation of i) Photoelectric effect ii) Black body radiation (5+5) 2. a) State and explain Heisenberg’s Uncertainty principle? b) Show that electrons cannot reside inside the nucleus applying uncertainty principle. c) What are matter waves? Explain. (4+4+2) 3. a)With relevant theory explain G.P. Thompson’s experiment of electron diffraction. b)Explain why an electron cannot be present in a nucleus but a proton can. c) What is the Bohr’s interpretation of the wave function ψ? (5+2+3) 4 a) With relevant theory explain Davisson and Germer’s experiment to prove de-Broglie’s hypothesis . b)Explain phase velocity and group velocity for a matter wave. State and explain Heisenberg’s uncertainty principle. (5+5) 5. a)What is the expectation value of position and momentum of the particle in quantum mechanism? b)Derive the independent Schrodinger equation for a particle subjected to a potential V. c) What are stationary states? (3+5+2) 6 a) Obtain Schrodinger’s time-dependent equation for a free particle. b)Explain the terms eigen function and eigen values. (8+2)
1. Explain the failure of classical theory in explanation of i)
Photoelectric effect ii) Black body radiation(5+5)2. a) State and
explain Heisenbergs Uncertainty principle? b) Show that electrons
cannot reside inside the nucleus applying uncertainty principle. c)
What are matter waves? Explain.(4+4+2) 3. a)With relevant theory
explain G.P. Thompsons experiment of electron diffraction.
b)Explain why an electron cannot be present in a nucleus but a
proton can. c) What is the Bohrs interpretation of the wave
function ? (5+2+3) 4 a) With relevant theory explain Davisson and
Germers experiment to prove de-Broglies hypothesis .b)Explain phase
velocity and group velocity for a matter wave. State and explain
Heisenbergs uncertainty principle. (5+5)5. a)What is the
expectation value of position and momentum of the particle in
quantum mechanism?b)Derive the independent Schrodinger equation for
a particle subjected to a potential V.c) What are stationary
states? (3+5+2)
6 a) Obtain Schrodingers time-dependent equation for a free
particle.b)Explain the terms eigen function and eigen values.(8+2)7
a) Derive energy eigen values and eigen function for a particle in
one-dimensional box using Schrodinger equation.a. b) Represent the
first three wave functions.(7+3)8 Describe atomic absorption
spectroscopy and mention any two of its applications. (8+2)9
Explain how classical physics fails and quantum theory helps in
explaining, a) Black body radiation and b) Compton effect.(5+5)10
a) State and explain Heisenberg uncertainty principle.b. b) Why
electron cannot exist inside the nucleus. Explain.c. c) What are
matter waves?(4+3+3)11 a) What is a wave function? Mention any two
characteristic of wave function. b) Set up Schrodingers time
dependent equation for a particle in one dimension.(3+7)12 a) Solve
Schrodingers wave function for a particle in one dimensional box
and obtain energy eigen values. b) Obtain an expression for eigen
function and mention its first three wave functions.(6+4)13 Briefly
describe ultraviolet and visible spectroscopy. Mention its
applications.(10)14 a) Describe the effects of radiation on living
systems. b) Write a note on radiation protection and
therapy.(6+4)15 a) Describe briefly with the help of a neat diagram
about the construction of CdS/CdTe solar cells. b) What are the
factors which limit the efficiency of photovoltaic solar energy
conversion device?(8+2)16 a) Describe briefly the working principle
and uses of solar furnace. 17 What are the advantages and
disadvantages of solar furnace?(6+4)
