A dip needle lies initially in the magnetic meridian when it shows an angle of dip θ at a place. The dip circle is rotated through an angle x in the horizontal plane and then it shows an angle of dip θ' . Then tan θ'tan θ is

(a) 1/cos x

(b) 1/sin x

(c) 1/tan x

(d) cos x

 

Concept Videos :-

#10 | Earth's Magnetism
#11 | Apparent & True Dip
#12 | Neutral points
#13 | Comparison of Magnetic Field of Earth at Two Points
#14 | Variation of Earth's Magnetic Field

Concept Questions :-

Earth's magnetism
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