Two normal uniform magnetic field contain a magnetic needle making an angle $60°$ with $F$. Then the ratio of $\frac{F}{H}$ is
Two normal uniform magnetic field contain a magnetic needle making an angle $60°$ with $F$. Then the ratio of $\frac{F}{H}$ is
- A
$1:2$
- B
$2:1$
- C
$\sqrt 3 :1$
- D
$1:\sqrt 3 $
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