ntThe dip at a place is delta.For measuring it the axis of the dip needle is perpendicular tothe magnetic meridian.If the axis of the dip needle makes an angle theta with the magnetic meridian,the apparent dip will be given byn nta)tan delta cosec thetan ntb)tan delta sin thetan ntc)tan delta cos thetan ntd)tan delta sec thetan

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The angle of dip at a place is $δ$ . If the dip is measured in a plane making an angle $θ$ with the magnetic meridian, the apparent angle of dip $δ_{1}$ will be :

Q. A dip needle lies initially in the magnetic meridian when it shows an angle of

d i p θ

at a place. The dip circle is rotated through an angle

x

in the horizontal plane and then it shows an angle of

d i p θ^{'}

. Then,

\frac{tan θ^{^{'}}}{tan θ}

will be

Q. A dip needle lies initially in the magnetic meridian when it shows an angle of dip

θ

at a place. The dip circle is rotated through an angle

x

in the horizontal plane and then it shows an angle of dip

θ^{'}

. Then

\frac{tan θ^{'}}{tan θ}

Q. A dip needle lies initially in the magnetic meridian when it shows an angle of dip

θ

at a place. The dip circle is rotated through an angle

x

in the horizontal plane and then it shows an angle of dip

θ

'. Then

\frac{tan θ^{^{'}}}{tan θ}

Q. A dip needle lies initially in the magnetic meridian when it shows an angle of dip

θ

at a place. The dip circle is rotated through an angle

x

in the horizontal plane and then it shows an angle of dip

θ' .

Then

\frac{tan θ'}{tan θ}

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