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JEE Main202120 Jul 2021Evening ShiftPhysicsMagnetic Properties of MatterActual

At an angle of 30 ° to the magnetic meridian, the apparent dip is 45 ° . Find the true dip:

Options

  1. Atan - 1 3
  2. Btan - 1 1 3
  3. Ctan - 1 2 3
  4. Dtan - 1 3 2

Correct answer

D. tan - 1 3 2

Step-by-step solution

A tanδ = tanδ ' cosθ = tan 45 ° cos 30 ° tan δ = 1 × 3 2 δ = tan - 1 3 2

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