Q. An L-shaped glass tube is just immersed in flowing water such that its opening is pointing against flowing water. If the speed of water current is $v$, then
A) The water in the tube rises to height $\frac{v^{2}}{2g}$
B) The water in the tube rises to height $\frac{g}{2v^{2}}$
C) The water in the tube does not rise at all
D) None of these
Explanation
The correct answer is Option A: The water in the tube rises to height $\frac{v^{2}}{2g}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.