Two water pipes P and Q having diameter 2 × 10 - 2 m and 4 × 10 - 2 m respectively are joined in series with the main supply line of water. The velocity of water flowing in pipe P is

Question

Two water pipes P and Q having diameter 2 × 10 - 2 m and 4 × 10 - 2 m respectively are joined in series with the main supply line of water. The velocity of water flowing in pipe P is, 4 times that of Q, 2 times that of Q, 1/2 times that of Q, 1/4 times that of Q

MARKS App · Accepted Answer

Using theorem of continuity, we have π D p 2 v p = π D Q 2 v Q ; v p = D Q D P 2 v Q = 4 × 10 - 2 2 × 10 - 2 2 × v Q = 4 v Q

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