A vertical
U-tube with two limbs 0.75 m apart is filled with water and rotated about a vertical axis 0.5 m from the left limb, as shown in the figure.
![](https://s3-us-west-2.amazonaws.com/infinitestudent-images/ckeditor_assets/pictures/552880/original_266222.png)
If the speed of rotation is 60 rpm, difference in elevation of water levels in the two limbs is
m. (Upto 2 decimal digit)