MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A proton enters a magnetic field of flux density 5 T with a velocity of 5 × 107 ms-1 at an angle of 30o with the field. Find the force on the proton. |
| A. | 0.2 × 10-11 N |
| B. | 2 × 10-11 N |
| C. | 20 × 10-11 N |
| D. | 200 × 10-11 N |
| Answer» C. 20 × 10-11 N | |
| 2. |
Force on a charge ‘q’ moving with a velocity ‘v’ in a magnetic field is given by F = qvB. State true or false. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following will experience a maximum force, when projected with the same velocity perpendicular to the magnetic field : (i) α-particle, and (ii) β-particle? |
| A. | Both α-particle and β-particle |
| B. | None |
| C. | β-particle |
| D. | α-particle |
| Answer» E. | |
| 4. |
An electron moving with a velocity of 15 ms-1 enters a uniform magnetic field of 0.2 T, along a direction parallel to the field. What would be its trajectory in this field? |
| A. | Elliptical |
| B. | Straight path |
| C. | Helical |
| D. | Circular |
| Answer» C. Helical | |