Water is flowing continuously from a tap having an internal diameter 8*10-3m. The water velocity as it leaves the tap is 0.4 ms-1. The diameter of the water stream at a distance 2*10-1m below the tap is close to :(a) 7.5*10-3m(b) 9.6*10-3m(c) 3.6*10-3m(d) 5.4*10-3m
Amit Saxena , 10 Years ago
Grade upto college level
1 Answers
Navjyot Kalra
Last Activity: 10 Years ago
(c). From Bernoulli’s theorem,
P0 + 1/2 pv21pgh = p0 + 1/2 pv22 + 0
V2 = √v21 + 2gh = √0.16 + 2 * 10 *0.2 = 2.03 m/s
From equation of continuity
A2v2 = A1v1
πD22/4 * v2 = πD21/4v1
D1D2 √v1/v2 = 3.55 * 10-3 m
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free