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If declination at a place is known to be...

If declination at a place is known to be `15 ^(@)` E. And a compass needle points as shown, then geographic north is represented by direction numberd.

A. 1
B. 2
C. 3
D. 4

A

1

B

2

C

3

D

4

Text Solution

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The correct Answer is:
To solve the question regarding the declination of a compass needle and its relation to geographic north, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Declination**: Declination is the angle between magnetic north (the direction the compass needle points) and true north (geographic north). A declination of 15° East means that the magnetic north is 15° to the east of true north. 2. **Visualize the Compass**: Imagine a compass where the needle points towards magnetic north. Since the declination is 15° East, we know that if the compass needle points to a certain direction, true north will be 15° to the west of that direction. 3. **Identify the Compass Directions**: In the context of the question, we can visualize the compass as a clock face. If we assume that the 12 o'clock position represents true north, then we can determine where the compass needle points in relation to true north. 4. **Calculate the True North Direction**: If the compass needle points to a certain direction (let's say it points to 12 o'clock), we need to adjust for the declination. Since the declination is 15° East, we subtract this angle from the direction the compass needle points. 5. **Determine the Correct Option**: If the compass needle points to 12 o'clock, true north would be at 12 o'clock minus 15°, which is equivalent to 11:45 on the clock. In the options provided, we need to identify which direction corresponds to 11:45. 6. **Select the Correct Answer**: Based on the options given (1, 2, 3, 4), we find that direction number 2 corresponds to the position of 11:45 on the clock face. ### Conclusion: The correct option is **B. 2**. ---
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