• Subject:


  • Topic:


A dip needle lies initially in the magnetic meridian when it shows an angle of dip θ at a place. The dip circle is rotated through an angle x in the horizontal plane and then it shows an angle of dip θ' . Then tan θ'tan θ is

(a) 1/cos x

(b) 1/sin x

(c) 1/tan x

(d) cos x