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5. Water is moving with a speed of

5.18 ms–1 through a pipe with a cross-sectional area of 4.20 cm2. The water gradually descends 9.66 m as the pipe increase in area to 7.60 cm2. The speed of flow at the lower level is

(a)   3.0 ms–1                                          (b)   5.7 ms–1

(c)   3.82 ms–1                                         (d)   2.86 ms–1

Answer-d

(8)

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