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The horizontal and vertical components o...

The horizontal and vertical components of earth's magnetic field at a place are 0.3G and 0.52G. The earth's magnetic field and the angle of dip are

A

`0.3G and delta=30^(@)`

B

`0.4G and delta=40^(@)`

C

`0.5G and delta=50^(@)`

D

`0.6G and delta=60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
As,
` Given B_(E)=0.3G,B_(V)=0.52G`
`B_(E)=sqrt(B_(H)^(2)+B_(V)^(2)) and tan delta=(B_(v))/(B_(H))`
` B_(E)=sqrt((0.30)^(2)+(0.52)^(2))=sqrt0.36=0.6G`
`and delta="tan"^(-1)(B_(V))/(B_(H))="tan"^(-1)(0.52)/(0.3)=60^(@)`
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