An L-shaped tube is held in a stream. It has a small orifice at the upper end which is 0.106 m above the surface of water. If water in stream is flowing at `2.45 ms^(-1)` and entering at the other end of the tube, then find the height of the jet of water coming out from the orifice.

Explanation

We know that `v_(1)^(2)-v_(2)^(2)=2/p(P_(2)-P_(1))=2/p(hrhog)=2hg`
`=2 xx 0.106 xx 9.8 =2.0776=2.08`
Hence, `v_(2)^(2)=2.45^(2)-2.08^(2)`
`therefore v_(2)=1.98ms^(-1)`
We get `0=(1.98)^(2)-2(1.98)h`
Height to which jet reaches will be, `h=(1.98 xx 1.98)/(19.6)=0.20m`
h=20.0m