If a magnet is suspended at an angle $30^o$ to the magnetic meridian, it makes an angle of $45^o$ with the horizontal. The real dip is
${\tan ^{ - 1}}(\sqrt 3 /2)$
${\tan ^{ - 1}}(\sqrt {3)} $
${\tan ^{ - 1}}(\sqrt {3/2} )$
${\tan ^{ - 1}}(2/\sqrt 3 )$
Due to the earth's magnetic field, charged cosmic ray particles
What is the angle between axis of rotation and magnetic axis of earth ?
Assertion : The true geographic north direction is found by using a compass needle.
Reason : The magnetic meridian of the earth is along the axis of rotation of the earth.
The angle of dip at a place is $40.6°$ and the intensity of the vertical component of the earth's magnetic field $V = 6 \times {10^{ - 5}}$ $Tesla$. The total intensity of the earth's magnetic field $ (I) $ at this place is
If a magnet is hanged with its magnetic axis then it stops in