A beaker of height 30 cm is partially filled with a liquid and is rotated by an angle as shown.At this point, the pressure at point B is found to be 5 bar. By what angle should be increased such that the pressure at B gets halved?

• A. n<a href="https://www.sanfoundry.com/wp-content/uploads/2017/08/fluid-mechanics-questions-answers-experienced-q13.png"><img alt="The angle increased such that pressure at B gets halved is 15o in given diagram" class="aligncenter size-full wp-image-154547" height="211" src="https://www.sanfoundry.com/wp-content/uploads/2017/08/fluid-mechanics-questions-answers-experienced-q13.png" width="470"/></a>
• B. 12^o
• C. 15^o
• D. 17^o
• E. 20^o