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Question: Answered & Verified by Expert
In the magnetic meridian of a certain place, the horizontal component of the earth's magnetic field is $86.6 \mathrm{G}$ (Gauss) and the magnetic field of earth is $100 \mathrm{G}$ (Gauss). Then the dip angle is
PhysicsMagnetic Properties of MatterTS EAMCETTS EAMCET 2022 (20 Jul Shift 2)
Options:
  • A $45^{\circ}$
  • B $60^{\circ}$
  • C $30^{\circ}$
  • D $75^{\circ}$
Solution:
1623 Upvotes Verified Answer
The correct answer is: $30^{\circ}$
Let $\phi$ be angle of dip
Then, $\cos \phi=\frac{\mathrm{B}_{\mathrm{H}}}{\mathrm{B}}=\frac{86.6}{100}=0.866=\frac{\sqrt{3}}{2}$
So, $\phi=30^{\circ}$

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