Question

A given shaped glass tube having uniform area of cross-section is filled with water and is mounted on a rotatable shaft as shown in Fig. If the tube is rotated with a constant angular velocity w, then –

• A. Waterlevel in A willrise and fall in B
• B. Waterlevel in both A and B willrise
• C. Waterlevel in B willrise and willfall in A
• D. Waterlevel remains same in both A and B

Answer 1

Answer: (B)

Waterlevel in both A and B willrise

Answer 2

Extra force F = $\frac{m\omega^{2}r}{2}$ & extra pressure