MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the relation between angle of dip and magnetic latitude? |
| A. | tanδ=4tanλ |
| B. | tanδ=\(\frac {4}{tan \lambda }\) |
| C. | tanδ=\(\frac {2}{tan \lambda }\) |
| D. | tanδ=2tanλ |
| Answer» E. | |
| 2. |
The angle of dip at a certain place on Earth is 30o and the magnitude of Earth’s horizontal component of magnetic field is 0.35 G. Find the magnetic field at that place on Earth. |
| A. | 0.35 G |
| B. | 0.40 G |
| C. | 0.45 G |
| D. | 0.50 G |
| Answer» C. 0.45 G | |
| 3. |
When is the angle of dip at a place equal to 45o? |
| A. | When the vertical and horizontal components of earth’s magnetic field are equal |
| B. | When the vertical component is twice the horizontal component of earth’s magnetic field |
| C. | When the vertical component is half the horizontal component of earth’s magnetic field |
| D. | When either the vertical component or the horizontal components of earth’s magnetic field is equal to zero |
| Answer» B. When the vertical component is twice the horizontal component of earth’s magnetic field | |
| 4. |
At a given place on the Earth’s surface, the horizontal component of Earth’s magnetic field is 9 × 10-5 T and the resultant magnetic field is 180 × 10-6. Calculate the angle of dip at this place. |
| A. | 45o |
| B. | 0o |
| C. | 60o |
| D. | 30o |
| Answer» D. 30o | |
| 5. |
At the magnetic North Pole of the Earth, what is the value of the angle of dip? |
| A. | Zero |
| B. | Minimum |
| C. | Infinity |
| D. | Maximum |
| Answer» E. | |
| 6. |
Identify the expression for horizontal component from the following. |
| A. | BH=Bcosδ |
| B. | B=BH cosδ |
| C. | BH=\(\frac {B}{cos \delta }\) |
| D. | BH=2Bcosδ |
| Answer» B. B=BH cosδ | |
| 7. |
The Earth always have both horizontal and vertical components everywhere. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which among the following is denoted by δ? |
| A. | Horizontal component |
| B. | Magnetic meridian |
| C. | Magnetic declination |
| D. | Magnetic inclination |
| Answer» E. | |
| 9. |
Which of the following is the definition for magnetic meridian of Earth? |
| A. | Vertical plane passing through the axis of a freely suspended or pivoted magnet |
| B. | Horizontal plane passing through the axis of a freely suspended or pivoted magnet |
| C. | Vertical plane passing through the geographical North Pole and South Pole at a given place |
| D. | Horizontal plane passing through the geographical North Pole and South Pole at a given place |
| Answer» B. Horizontal plane passing through the axis of a freely suspended or pivoted magnet | |
| 10. |
How many quantities are required to specify the magnetic field of the earth? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |