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A dip circle is adjusted so that its nee...

A dip circle is adjusted so that its needle moves freely in the magnetic meridian. In this position, the angle of dip ia `40^(@)`. Now the dip circle is rotated so that the plane in which the needle moves makes an angle of `30^(@)` with the magnetic meridian. In this position the needle will dip by an angle

A

`40^(@)`

B

`30^(@)`

C

More than `40^(@)`

D

Less than `40^(@)`

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A dip circle is so set that the dip needle moves freely in the magnetic meridian. In this position the angle of dip is 39^(@) . Now, the dip circle is rotated so that the plane in which the needle moves makes an angle of 30^(@) with the magnetic meridian. In this position, the needle will dip by an angle -

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At an angle of 30^(@) to the magnetic meridian, the apparent dip is 45^(@) . Find the true dip:

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A dip circle is at right angles to the magnetic meridian. What will be the apparent dip ?

The angle of dip in a plane at an angle of 30^@ with magnetic meridian is 45^@ .The value of true Dip is

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