Physics-
General
Easy
Question
A liquid flows through a horizontal tube. The velocities of the liquid in the two sections, which have areas of cross-section 
and 
, are 
and 
respectively. The difference in the levels of the liquid in the two vertical tubes is h
- The volume of the liquid flowing through the tube in unit time is
- The energy per unit mass of the liquid is the same in both sections of the tube
The correct answer is:
According to equation of continuity the volume of liquid flowing through the tube in unit time remains constant i.e. 
hence option
According to Bernoulli's theorem,
Þ 
Þ 
\
Hence option
Related Questions to study
Physics-
In this figure, an ideal liquid flows through the tube, which is of uniform cross-section. The liquid has velocities
and 
, and pressure PA and PB at points A and B respectively
In this figure, an ideal liquid flows through the tube, which is of uniform cross-section. The liquid has velocities and , and pressure PA and PB at points A and B respectively
Physics-General
Physics-
A liquid flows in a tube from left to right as shown in figure. and are the cross-sections of the portions of the tube as shown. Then the ratio of speeds 
will be
A liquid flows in a tube from left to right as shown in figure. and are the cross-sections of the portions of the tube as shown. Then the ratio of speeds will be
Physics-General
Physics-
A ball of radius r and density r falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is h, the value of h is given by
A ball of radius r and density r falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is h, the value of h is given by
Physics-General
Physics-
In the following fig. is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cm. It can be said that the
In the following fig. is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cm. It can be said that the
Physics-General
Physics-
An incompressible liquid flows through a horizontal tube as shown in the following fig. Then the velocity v of the fluid is
An incompressible liquid flows through a horizontal tube as shown in the following fig. Then the velocity v of the fluid is
Physics-General
Physics-
A candle of diameter d is floating on a liquid in a cylindrical container of diameter D (D>>d) as shown in figure. If it is burning at the rate of 2cm/hour then the top of the candle will
A candle of diameter d is floating on a liquid in a cylindrical container of diameter D (D>>d) as shown in figure. If it is burning at the rate of 2cm/hour then the top of the candle will
Physics-General
Chemistry-
In Haber s process, (he ammonia is manufactured according to the following reaction:
The pressure inside the chamber is maintained at 200 atm and temperature at 500°C Generally, this reaction is carried out in presence of Fe catalyst The preparation of ammonia by Haber's process is an exothennic reaction. If the preparation follows the following temperature pressure relationship. for its % yield. Then for temperature T1, T2 and T3 the correct option is: 
In Haber s process, (he ammonia is manufactured according to the following reaction: The pressure inside the chamber is maintained at 200 atm and temperature at 500°C Generally, this reaction is carried out in presence of Fe catalyst The preparation of ammonia by Haber's process is an exothennic reaction. If the preparation follows the following temperature pressure relationship. for its % yield. Then for temperature T1, T2 and T3 the correct option is:
Chemistry-General
Chemistry-
Using above equations, Write down expression for K of the following reaction:
Using above equations, Write down expression for K of the following reaction:
Chemistry-General
Physics-
P-V diagram of an ideal gas is as shown in figure. Work done by the gas in process ABCD is
P-V diagram of an ideal gas is as shown in figure. Work done by the gas in process ABCD is
Physics-General
Physics-
An ideal monoatomic gas is taken round the cycle ABCDA shown in the PV diagram in the given fig. The work done during the cycle is
An ideal monoatomic gas is taken round the cycle ABCDA shown in the PV diagram in the given fig. The work done during the cycle is
Physics-General
Physics-
The P-V diagram of 2 gm of helium gas for a certain process 
is shown in the figure. what is the heat given to the gas during the process
The P-V diagram of 2 gm of helium gas for a certain process is shown in the figure. what is the heat given to the gas during the process
Physics-General
Physics-
In the following P-V diagram two adiabatic cut two isothermals at temperatures T1 and T2 (fig.). The value of 
will be
In the following P-V diagram two adiabatic cut two isothermals at temperatures T1 and T2 (fig.). The value of will be
Physics-General
Physics-
A sample of an ideal gas is taken through a cycle a shown in figure. It absorbs 50J of energy during the process AB, no heat during BC, rejects 70J during CA. 40J of work is done on the gas during BC. Internal energy of gas at A is 1500J, the internal energy at C would be
A sample of an ideal gas is taken through a cycle a shown in figure. It absorbs 50J of energy during the process AB, no heat during BC, rejects 70J during CA. 40J of work is done on the gas during BC. Internal energy of gas at A is 1500J, the internal energy at C would be
Physics-General
Physics-
P-V diagram of a cyclic process ABCA is as shown in figure. Choose the correct statement
P-V diagram of a cyclic process ABCA is as shown in figure. Choose the correct statement
Physics-General
Physics-
In the following figure, four curves A, B, C and D are shown. The curves are
In the following figure, four curves A, B, C and D are shown. The curves are
Physics-General
