A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10%, then the rate of flow of the liquidshall change nearly by
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a
+10%
b
46%
c
-10%
d
-40%
answer is B.
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Detailed Solution
Volume flow rate=V=△Pπr48ηL∴V∝r4 and V'∝r+110r4Thus, V'V=11×11×11×1110×10×10×10=1.4641 or V'V−1×100=46.4%