MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
Pair production does not occur in X-ray imaging. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
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 | |
| 3. |
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. | |
| 4. |
Charge and momentum are conserved in Pair Production. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
What is the rest mass energies for electron, Ee, and positron, EP? |
| A. | E<sub>e</sub> = 1.02 MeV, E<sub>P</sub> = 1.02 MeV |
| B. | E<sub>e</sub> = 0.51 MeV, E<sub>P</sub> = 1.02 MeV |
| C. | E<sub>e</sub> = 1.02 MeV, E<sub>P</sub> = 0.51 MeV |
| D. | E<sub>e</sub> = 0.51 MeV, E<sub>P</sub> = 0.51 MeV |
| Answer» E. | |
| 6. |
What kind of photon is required for the pair production phenomenon to occur? |
| A. | Visible Light Photon |
| B. | X-ray Photon |
| C. | -ray Photon |
| D. | UV Photon |
| Answer» D. UV Photon | |
| 7. |
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 | |
| 8. |
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 | |