1.

At 45^(@)to the magnetic meridian theapparentis 60^(@) the true dip is

Answer»

`TAN^(-1)SQRT(3)`
`tan^(-1)""(1)/(sqrt(3))`
`tan^(-1)sqrt(3/2)`
`tan^(-1)sqrt(1/6)`

SOLUTION :APPARENT dip `delta` is given by
`tan delta=(v)/(H)=(V)/(H cos 45^(@))=(V)/(H)xx(1)/(cos 45^(@))`
but `tan 60^(@) =tan delta sqrt(2)`
`tan delta =sqrt(3)//2therefore delta =tan^(-1) sqrt(3)//2`
or `tan delta =sqrt(3)//2 therefore delta =tan^(-1) sqrt(3)//2`
`rarr tan delta =tan delta cos alpha=sqrt(3)/(2)`


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