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At an angle of 30° to the magnetic meridian, the apparent dip is 45°. Find the true dip:

1. tan⁻¹ √3
2. tan⁻¹ (1/√3)
3. tan⁻¹ (2/√3)
4. tan⁻¹ (√3/2)

Correct answer: tan⁻¹ (√3/2)

Solution

The true dip can be calculated using the relationship between the apparent dip and the angle to the magnetic meridian. Given that the apparent dip is 45° and the angle to the magnetic meridian is 30°, the true dip is found using the formula that relates these angles, leading to the result of tan⁻¹(√3/2).

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