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A dip needle at a place is horizontal. T...

A dip needle at a place is horizontal. The position of the plane will be at

A

`60^(@)` angle of latitude

B

`50^(@)` angle of latitude

C

magnetic equator

D

magnetic pole

Text Solution

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The correct Answer is:
To solve the question regarding the position of a dip needle that is horizontal, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Dip Needle**: A dip needle is a magnetized needle that is free to rotate in a vertical plane. It aligns itself with the Earth's magnetic field. The angle that the dip needle makes with the horizontal plane is known as the dip angle or magnetic inclination. 2. **Definition of the Magnetic Equator**: The magnetic equator is the line around the Earth where the magnetic field is horizontal. At this location, the dip angle is zero, meaning the dip needle does not tilt and remains horizontal. 3. **Analyzing the Given Condition**: The question states that the dip needle is horizontal. This implies that the dip angle is 0 degrees. 4. **Identifying the Location**: Since the dip needle is horizontal, it indicates that we are at the magnetic equator. At the magnetic equator, the magnetic field lines are parallel to the surface of the Earth, resulting in a horizontal dip needle. 5. **Conclusion**: Therefore, if the dip needle at a place is horizontal, the position of the plane will be at the magnetic equator. ### Final Answer: The position of the plane will be at the **magnetic equator**. ---
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