Question

The diagram (figure) shows a venturimeter, through which water is flowing the speed of water at X is 2cm/s. the speed of water at Y (taking `g=1000cm//s^(2)`) is
A. `23cms^(-1)`
B. `23cms^(-1)`
C. `101cms^(-1)`
D. `1024cms^(-1)`

Answer 1

`(1)/(2)pv_(1)^(2)+P_(1)=(1)/(2)pv_(2)^(2)+P_(2)`
`P_(1)-P_(2)=(1)/(2)p(v_(2)^(2)-v_(1)^(2))`
`hgd=(1)/(2)p(v_(2)^(2)-v_(1)^(2))`
`v_(2)=32m//sec.`