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The true value of dip at a place is 60^(...

The true value of dip at a place is `60^(@)`. The apparent dip in a plane inclined at an angle of `30^(@)` with magnetic meridian is

A

`tan^(1) (1/2)`

B

`tan^(-1) (2)`

C

`tan^(-1)(2/3)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
If apparent `dip = delta.,` true `dip = delta`
`theta` = angle made by vertical plane with magnetic meridian
`tandelta= (tandelta)/(costheta)= (tan60^(@))/(cos30^(@))= (sqrt3xx2)/sqrt3=2`
`delta. = tan^(-1)(2)`
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