A dip needle vibrates in a vertical plane perpendicular to magnetic meridian. The time of vibration is found to be 25, the same needle is then allowed to vibrate in the horizontal plane and the time period is again found to be 25. Then, the angle of dip is

Options

(a) 0⁰
(b) 30⁰
(c) 45⁰
(d) 90⁰

Correct Answer:

45⁰

Explanation:

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