If a magnet is suspended at an angle of #30^o# to the earth magnetic meridian , the dip needle makes angle of #45^o# with the horizontal . the real dip is ?
Let the vertical component of earth's magnetic field be V and its horizontal component at magnetic meridian be H.
Then the angle of dip
When the dip needle is suspended at an angle of
In this situation vertical component of earth's field responsible for its orientation with the horizontal direction, remains same as
Comparing  and  we get