KVPY SX SB Exam 20141 Question Paper

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Water containing air bubbles flows without turbulence through a horizontal pipe which has a region of narrow cross-section. In this region the bubbles

move with greater speed and are smaller than in the rest of the pipe.
move with greater speed and are larger in size than in the rest of the pipe.
move with lesser speed and are smaller than in the rest of the pipe.
move with lesser speed and are of the same size as in the rest of the pipe.

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