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The value of horizontal component of ear...

The value of horizontal component of earth's magnetic field at a place is `-.35xx10^(-4)T`. If the angle of dip is `60^(@)`, the value of vertical component of earth's magnetic field is about:

A

`0.10xx10^(-4)T`

B

`0.2xx10^(-4)T`

C

`0.40xx10^(-4)T`

D

`0.6xx10^(-4)T`

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