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KVPY SX SB Exam 20141 Question Paper
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© examsnet.com
Question : 25
Total: 120
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.
Validate
Solution:
According to Bernoulli theorem
In the region of narrow cross section of pipe, KE of fluid will be greater and pressure energy will be lesser.
⇒ less pressure results into larger in size of air bubble and greater KE results its greater speed.
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