Experimental_Physics_module_1_Quantum_Physics_mcqs.pdf

P P SAVANI UNIVERSITY SCHOOL OF ENGINEERING MULTIPLE CHOICE QUESTIONS / BLANKS / TRUE-FALSE SUBJECT: Experimental Physics CODE: SESH1130 Module 1: Quantum Physics 1. Classical mech...

P P SAVANI UNIVERSITY SCHOOL OF ENGINEERING MULTIPLE CHOICE QUESTIONS / BLANKS / TRUE-FALSE SUBJECT: Experimental Physics CODE: SESH1130 Module 1: Quantum Physics 1. Classical mechanics explains the motion of ………. (a)Elastic waves (b) Electromagnetic waves (c) macroscopic objects (d) microscopic particles 2. Quantum mechanics explains the motion of ………. (a)Elastic waves (b) Electromagnetic waves (c) macroscopic objects (d) microscopic particles 3. The de-Broglie hypothesis is associated with …………. (a)wave nature of electrons only (b)wave nature of α-particle only (c)wave nature of radiations (d)wave nature of all material particles 4. The equation of motion of matter wave was derived by……… (a)Heisenberg (b)Bohr (c) de-Broglie (d) Schrodinger 5. Dual nature of matter was predicted by ……………. (a)Schrodinger (b) Louis de-Brogli (c) G.P. Thomson (d)Werner Heisenberg 6. The rest mass of a photon is…………….. (a) zero (b) 1.67 x 10-31 kg (c) 1.9 x 10-27 kg (d) infinity 7. When group velocity increases, proportionately phase velocity will ……… (a) increase (b) decrease (c) remains same (d) be zero 8. Uncertainty principle states that the error in measurement is due to …………… (a) dual nature of particles (b) small size of particles (c) large size of particles (d) error in instrument 9. The product of uncertainty between energy and time (a) ≥ (b) ≥ (c) = (d) None of these 10. Which of the following waves can travel with the velocity greater than the velocity of light in vacuum? (a) Matter (b) Electromagnetic (c) X-rays (d) Radio waves 11. Which of the following formulas can be used to determine the de Broglie wavelength? (a) λ = hmv (b) λ = h/mv (c) λ = mv/h (d) λ = hm/c 12. Which of the following can act as both a particle and as a wave? (a) photon (b) electron (c)neutron (d)all of these 13. The function representing matter waves must be ………… (a) complex (b) real (c) zero (d) infinity 14. The wave function is acceptable wave function if it is (a) Finite everywhere (b) Continuous everywhere (c) Single valued everywhere (d) All of these. 15. The normalization of wave function is always possible if (a) ∫ 𝛹𝛹 ∗ 𝑑𝑥 = 𝑖𝑛𝑓𝑖𝑛𝑖𝑡𝑒 (b) ∫ 𝛹𝛹 ∗ 𝑑𝑥 = 1 (c) ∫ 𝛹𝛹 ∗ 𝑑𝑥 = 0 (d) ∫ 𝛹𝛹 ∗ 𝑑𝑥 = 𝑎𝑙𝑙 𝑜𝑓 𝑡ℎ𝑒𝑠𝑒 16. Schrödinger’s time independent equation is applicable for the particles with ……………. (a) Constant energy (b) Variable energy (c) Only constant potential energy (d) All of these 17. According to Max Born approximation 𝚿 represents (a) Charge Density (b) Particle Density (c) Probability amplitude (d) Probability density 18. The fourth generation classical computer is known as Microprocessor. (True or False) 19. A quantum computer is a machine that performs calculations based on laws of ……….. (a) quantum mechanics (b) classical mechanics (c) Newton’s laws of motion (d) kinematics 20. In quantum computers, a qubit makes use of any states (0 or 1) to hold information. (True or False)