A. Second derivative
B. Empirical gridding
C. Polynomial fitting
D. None of the above
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A. $$ 6.754 x 10^{-5} rad/s $$
B. $$ 7.292 x 10^{-5} rad/s $$
C. $$ 6.292 x 10^{-5} rad/s $$
D. $ $ 4 6.292 x 10^{-5} rad/s $$
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A. Magnetic poles are of two poles - North and South
B. Like poles attract and unlike poles repel each other
C. Poles always seem to occur in unequal and opposite pairs
D. Magnetic lines of force appear coming out from South pole and entering North pole
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A. Statistical analysis
B. Data processing
C. Modelling
D. None of the above
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A. Error-value
B. Actual data value
C. Absolute gravity value
D. Theoretical point value
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A. suddenly change paths when the density abruptly changes
B. travel in gently curving paths due to refraction
C. travel in straight lines through the Earth
D. travel in gently curving paths due to duffraction
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A. mantle
B. crust
C. Both a and b
D. None of the above
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A. Rotation theory
B. Ferromagnetism theory
C. Dynamic theory
D. All of the above
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A. longitudinal
B. electromagnetic
C. ultrasonic
D. transverse
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A. They show magnetisation in opposite direction when subjected to magnetisation
B. Atomic moment is zero when intensity is zero
C. Relative permeability is slightly more than 1 in them
D. Their electrons' magnetic moments cancel out because of orbital and spin motions
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