Question

A magnet suspended at 30˚ with magnetic meridian makes an angle of 45˚ with the horizontal. What shall be the actual value of the angle of dip?

Answer 1

Here,

θ = 30˚ 

Apparent value of dip,

δ₁ = 45˚ 

Actual value of dip, 

δ =? 

We have, 

tanδ = \(\frac{V}{H}\),

H = horizontal component of earth’s magnetic field in magnetic meridian 

Let H₁ be component of H at 30˚ to magnetic meridian, then