MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Which phenomenon is shown in the figure? |
| A. | Pair Production |
| B. | Photoelectric Effect |
| C. | Compton effect |
| D. | Pair annihilation |
| Answer» E. | |
| 2. |
Pair production does not occur in X-ray imaging. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is the direction of the magnetic field? |
| A. | Inside the plane |
| B. | Outside the plane |
| C. | Upwards |
| D. | Downwards |
| Answer» C. Upwards | |
| 4. |
A photon of energy 4.1 MeV is incident on a lead nucleus, causing the creation of electron-positron pair. They travel perpendicular to the initial direction of the photon. The energy of the electron is ____________ |
| A. | 4.1 MeV |
| B. | 2.05 MeV |
| C. | 1.02 MeV |
| D. | 0.51 MeV |
| Answer» C. 1.02 MeV | |
| 5. |
A 3.0 MeV photon interacts with a lead nucleus in empty space. What would be the Kinetic Energy of the electron and positron pair? |
| A. | 2.01 MeV |
| B. | 1.5 MeV |
| C. | 1.45 MeV |
| D. | Electron-Positron pair won’t be created |
| Answer» E. | |
| 6. |
Charge and momentum are conserved in Pair Production. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What is the rest mass energies for electron, Ee, and positron, EP? |
| A. | Ee = 1.02 MeV, EP = 1.02 MeV |
| B. | Ee = 0.51 MeV, EP = 1.02 MeV |
| C. | Ee = 1.02 MeV, EP = 0.51 MeV |
| D. | Ee = 0.51 MeV, EP = 0.51 MeV |
| Answer» E. | |
| 8. |
What kind of photon is required for the pair production phenomenon to occur? |
| A. | Visible Light Photon |
| B. | X-ray Photon |
| C. | γ-ray Photon |
| D. | UV Photon |
| Answer» D. UV Photon | |
| 9. |
For Pair Production phenomenon to occur the photon must have energy, greater than or equal to ______________ |
| A. | 0.51 MeV |
| B. | 1.02 MeV |
| C. | 0.32 MeV |
| D. | 0.85 MeV |
| Answer» C. 0.32 MeV | |
| 10. |
What is the relation between the interaction parameter, ‘b’, and atomic radius, R, for the Pair Production? |
| A. | b > R |
| B. | b ≈ R |
| C. | b < R |
| D. | No relation between b and R |
| Answer» D. No relation between b and R | |