1.

The earth's magnetic field at a certain place has a horizontal component 0.3 Gauss and the total strength 0.5 Gauss. The angle of dip is                                                     [MP PMT 1995]

A.            \[{{\tan }^{-1}}\frac{3}{4}\]   
B.            \[{{\sin }^{-1}}\frac{3}{4}\]
C.            \[{{\tan }^{-1}}\frac{4}{3}\]   
D.             \[{{\sin }^{-1}}\frac{3}{5}\]
Answer» D.             \[{{\sin }^{-1}}\frac{3}{5}\]


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