Recent questions without answers

0 votes

0 answers

A metallic sphere of radius `1 × 10^(-3) m` and density `1 × 10^4 kg` | `m^3` enters a tank of water after a free fall through a high ‘h’ in earth’s gravitational field. If its velocity remains unchanged after entering water, determine the value of h. Given :-Co-efficient of viscosity of water `= 1 × 10^(-3) Ns` | `m^2; g = 10 m` | `s^2`; density of water `= 1 × 10^3 kg `|

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Define

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is the significance of Reynolds’s

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Give two areas where Bernoulli’s theorem is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Water flows faster than honey.

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is stoke’s law and what are the factors on which viscous drag

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Water flows through a horizontal pipe of which the cross – section is not constant. The pressure is 1cm of mercury where the velocity is 0.35m/s. Find the pressure at a point where the velocity is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is terminal velocity and derive an expression for

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is equation of continuity? Water plows through a horizontal pipe of radius, 1cm at a speed of 2m/s. What should be the diameter of nozzle if water is to come out at a speed of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is Bernoulli’s theorem? Show that sum of pressure, potential and kinetic energy in the streamline flow is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is conserved in Bernoulli’s

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

If the rate of flow of liquid through a horizontal pipe of length l and radius R is Q. What is rate of flow of liquid if length and radius of tube is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Water is coming out of a hole made in the wall of tank filled with fresh water. If the size of the hole is increased, will the velocity of efflux

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The accumulation of snow on an aero plane wing may reduce the lift.

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Two pipes P and Q having diameters `2 × 10^(-2_ m and 4 × 10^(-2) m` respectively are joined in Series with the main supply line of water. What is the velocity of water flowing in pipe

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A horizontal pipe of diameter 20 cm has a constriction of diameter 4 cm. The velocity of water in the pipe is 2m/s and pressure is `10 N`/`m^2`. Calculate the velocity and pressure at the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The reading of a pressure metre attached to a closed is `2.5 × 10^5 N`/`m^2`. On opening the valve of pipe, the reading of the pressure metre reduces to `2.0 × 10^5 N`/`m^2`. Calculate the speed of water flowing through the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A large bottle is fitted with a siphon made of capillary glass tubing. Compare the Co-efficient of viscosity of water and petrol if the time taken to empty the bottle in the two cases is in the ratio 2:5. Given specific gravity of petrol =

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Under a pressure head, the rate of flow of liquid through a pipe is Q. If the length of pipe is doubled and diameter of pipe is halved, what is the new rate of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

In a horizontal pipeline of uniform area of cross – section, the pressure falls by `5 N`/`m^2` between two points separated by a distance of 1 Km. What is the change in kinetic energy per Kg of oil flowing at these points? Given Density of oil = 800

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

Recent questions without answers

Categories