MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the rms speed of methane at 27 ? |
| A. | 450 m/s |
| B. | 532 m/s |
| C. | 678 m/s |
| D. | 745 m/s |
| Answer» D. 745 m/s | |
| 2. |
What is the Kinetic Energy of 2 g of oxygen at -23 ? |
| A. | 186.2 J |
| B. | 194.86 J |
| C. | 201.45 J |
| D. | 256.32 J |
| Answer» C. 201.45 J | |
| 3. |
As the temperature is increased, molecules moving with lower speed increases. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The Kinetic Energy of the particle is dependent on Temperature only. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Mass of A is 4 times that of B. What is the ratio of their mean velocities? |
| A. | 1 : 4 |
| B. | 4 : 1 |
| C. | 1 : 2 |
| D. | 2 : 1 |
| Answer» D. 2 : 1 | |
| 6. |
What would be the most probable velocity for one Oxygen molecule at 300 K? |
| A. | 612 m/s |
| B. | 714 m/s |
| C. | 798 m/s |
| D. | 821 m/s |
| Answer» C. 798 m/s | |
| 7. |
The density of molecules is maximum at which speed? |
| A. | V<sub>rms</sub> |
| B. | V<sub>p</sub> |
| C. | V<sub>mean</sub> |
| D. | V<sub>inst</sub> |
| Answer» C. V<sub>mean</sub> | |
| 8. |
The average kinetic energy associated with each degree of freedom is ________ |
| A. | kT |
| B. | 2kT |
| C. | kT/2 |
| D. | kT/4 |
| Answer» D. kT/4 | |
| 9. |
The ratio of rms velocity to most probable velocity is ________ |
| A. | 3 : 2 |
| B. | 2 : 3 |
| C. | 3 : 2 |
| D. | 2 : 3 |
| Answer» B. 2 : 3 | |
| 10. |
Maxwell-Boltzmann statistics cannot be applied to _____________ |
| A. | Atoms |
| B. | Molecules |
| C. | Photons |
| D. | Lattice |
| Answer» D. Lattice | |
| 11. |
The Maxwell-Boltzmann law is given by the expression ________ |
| A. | ( frac{1}{e^{( frac{E}{kT})}} ) |
| B. | ( frac{1}{e^{(1+ frac{E}{kT})}} ) |
| C. | ( frac{1}{e^{( + frac{E}{kT})}} ) |
| D. | ( frac{1}{e^{( + frac{nE}{kT})}} ) |
| Answer» D. ( frac{1}{e^{( + frac{nE}{kT})}} ) | |
| 12. |
Maxwell-Boltzmann law is for the ________ |
| A. | Distinguishable particles |
| B. | Indistinguishable Particles |
| C. | Particles with half integral spin |
| D. | Particles with integral spin |
| Answer» B. Indistinguishable Particles | |
| 13. |
Phase space is a ________ |
| A. | 3 Dimensional Space |
| B. | 4 Dimensional Space |
| C. | 5 Dimensional Space |
| D. | 6 Dimensional Space |
| Answer» E. | |