Solapur University M. Sc. Nano Physics (Semester-II) Paper on Classical Mechanics & Quantum Mechanics Oct 2019
| Sr. No. | Question |
| 1 | The configuration space is _______dimensional space.
(a) 6 N (b) 3 N (c) 2 N (d) 4 N |
| 2 | The generating function F2(q,P,t) generates _____transformations
(a) Exchange (b) Identity (c) None (d) Infinite |
| 3 | The Hamiltonian is defined as _______
(a) H = T – V (b) H = T.V (c) H = T + V (d) H = T/V |
| 4 | In Lagrangian the motion of the system has been described by the _______consideration.
(a) Force (b) Momentum (c) Energy (d) Acceleration |
| 5 | If mi << m2, then the centre of mass of system coincides with the centre of mass of ______
(a) m1 (b) m2 (c) in between m1 and m2 (d) away from m1 |
| 6 | Classically, the concept of “tunneling” is impossible. Why ?
(a) The kinetic energy of the particle would be negative (b) The total energy of a particle is equal to the kinetic and potential energies (c) The kinetic energy must be equal to the potential energy (d) The total energy for the particle would be negative |
| 7 | When a particle approaching a potential step has a total energy that is greater than the potential step, what is the probability that the particle will be reflected?
(a) P <0 (b) P =0 (c) P =1 (d) P>0 |
| 8 | A particle has a total energy that is less than that of a potential barrier, when the particle penetrates the barrier, it’s wave function is _______
(a) A positive constant (b) Exponentially decreasing (c) Exponentially increasing (d) Oscillatory |
| 9 | An electron is an infinite square well that is 9.6 nm wide. The electron makes the transition from the n=14 to the n=11 state. The wavelength of the emitted photon is closet to ______
(a) 3400 nm (b) 4100 nm (c) 2800 nm (d) 4700 nm |
| 10 | How does the probability of an electron tunneling through a potential barrier vary with the thickness of the barrier?
(a) It is independent of the barrier thickness (b) It decreases exponentially with thickness (c) It decreases inversely with thickness (d) It decreases sinusoidally with thickness |
| Published on 9th Oct 2021 | |
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