JEE 2020 Revision Quiz: Mechanical Properties of Solids & Fluids - 1

When a wide vessel with a small hole in the bottom is filled with water and another liquid of density 4/3 times that of water to a thickness of 30 cm and 20 cm respectively, the velocity of water flow through the hole equals ? (Neglect viscosity)

Water flows through a pipe bent an angle to the horizontal with a velocity v. What is the force exerted on the bend of the pipe of cross-sectional area S ?

A tube of length 2.5m is filled with an ideal liquid occupying a horizontal column of length 1m and the tube is rotated about a vertical axis with an angular velocity of 10 rad/s about an end which is open with the other end being closed. What is the velocity with which the fluid emerges out of the tube from a small hole made on the closed end?

When an ice cube floating on water in a beaker melts completely the water level in the beaker will

A water hose pipe of cross - section area 5cm² is used to fill a tank of 120 L. It has been observed that it takes 2min to fill the tank. Now, a nozzle with an opening of cross – section area 1cm² is attached to the hose. The nozzle is held so that water is projected horizontally from a point 1m above the ground. The horizontal distance over which the water can be projected is (g=10 m/s²)