Dip angle are $30^o$ and $45^o$ at two different places, then ratio of horizontal component of earth magnetic field at these place will be
Dip angle are $30^o$ and $45^o$ at two different places, then ratio of horizontal component of earth magnetic field at these place will be
- A
$\sqrt 3:\sqrt 2$
- B
$1 :\sqrt 2$
- C
$1 :\sqrt 3$
- D
$1 :2$
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