List of top Physics Questions on Fluid Mechanics asked in BITSAT

Two capillary tubes of radii \(r_1\) and \(r_2\) \((r_1 > r_2)\) are dipped vertically in the same liquid. The rise of liquid in the tubes \(h_1\) and \(h_2\) satisfies:
Water flows through a horizontal pipe with a velocity of 2 m/s. The cross-sectional area of the pipe reduces to half. What is the velocity of water in the narrower section?
The approximate depth of an ocean is 2700m. The compressibility of water is 45.4 × 10⁻11Pa⁻1 and density of water is 10³kg m⁻3. What fractional compression of water is obtained at the bottom of the ocean?

Figure shows a capillary rise H. If air is blown through the horizontal tube as shown, then rise in capillary tube will be: