question_answer

If the horizontal and vertical component of earths magnetic field are equal at a certain place, the angle of dip is

A) \[90{}^\circ \]                             

B) \[60{}^\circ \]

C) \[45{}^\circ \]               

D) \[0{}^\circ \]

Correct Answer: C

Solution :

Angle of dip \[(\theta )\] is given by                  \[\tan \theta =\frac{V}{H}\]where V is vertical component of earths field, H the horizontal component.                  Given,   V = H     \[\therefore \]  \[\tan \theta =1\] \[\Rightarrow \]               \[\theta ={{45}^{o}}\]