Q.
The angle of dip at a place is 60o. At this place the total intensity of earth's magnetic field is 0.64 units. The horizontal intensity of earth's magnetic field at this place is
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a
1.28 units
b
0.64 units
c
0.16 units
d
0.32 units
answer is D.
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Detailed Solution
BH=Bcosϕ= 0.64 x cos60o = 0.64 x 12 = 0.32 units
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