At a given place on the earth's surface, the horizontal component of earth's magnetic field is 3×10−6T and resultant magnetic field is 6×10−6T. Angle of dip at this place is :
A
30o
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B
40o
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C
50o
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D
60o
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Solution
The correct option is D60o BH=Becosθ where θ is the dip angle. cosθ=BHBe=3×10−66×10−6=12=cos60∘ ⇒θ=60∘