An oil tanker partially filled with oil moves forward on a level road with uniform acceleration. The free surface of oil then:

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remains horizontal

is inclined to the horizontal with smaller depth at the rear end

is inclined to the horizontal with larger depth at the rear end

assumes a parabolic curve

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If the radius of the earth were to shrink by one per cent, its mass remaining the same, the value of g on the earth’s surface would:

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