1.

At a location, the horizontal component of the earth's magnetic field is 0.3 G in the magnetic meridian and the dip angle is 60^@ . The earth's magnetic field at this location in G is

Answer»

0.3
0.6
0.9
1.2

Solution :Using `beta_H = B COS DELTA` , we get
`0.3 = B cos 60^@`
` = 0.3 = B xx 1/2 " or " B= 0.6G`


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