An  $L-$ shaped glass tube is just immersed in flowing water towards tube as shown. If speed of water current is $V,$  then the height  $h$  upto which water rises will be
  • A$\frac {V^2}{2g}$
  • B$\frac {g}{2V^2}$
  • C$\frac {V^2}{4g}$
  • D$\frac {2V^2}{g}$
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