JEE Main 2022 · 29 Jul · Shift 2 · Physics Q48

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PhysicsSingle correct+4 / -1Question 48 of 90

The vertical component of the earth's magnetic field is $6\times10^{-5}$ T at any place where the angle of dip is 37°. The earth's resultant magnetic field at that place will be (Given tan 37° = $\frac34$ )

8\times10^{-5}

6\times10^{-5}

5\times10^{-4}

1\times10^{-4}

Answer and worked solution

Official answer: D

Resultant $B=\dfrac{B_V}{\sin37°}=\dfrac{6\times10^{-5}}{0.6}=1\times10^{-4}$ T.

(D)

Topics:Earth's magnetism

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JEE Main 2022 · 29 Jul · Shift 2, Physics question 48