Question

28. Rate of flow of water through a tube of radius
2 mm is 8 cm/s. Under similar conditions, the
rate of flow of water through a tube of radius 1 mm
will be
8
-7
1
(1) 4 cm/s
a
(2) 2 cm/s
(3) 1 cm/s
(4) 0.5 cm/s​

Answer 1

Answer:

4cm/s

Explanation:

because as the conditions remain samee but the areafrom which water is flowing is halved so thats why flow rate will be half

rate of flow is directly proportional to cross sectional area of the tube and also ressure (which is constant here)