Physics-
General
Easy
Question
A cubical sealed vessel with edge L is placed on a cart, which is moving horizontally with an acceleration ‘a’ as shown in figure. The cube is filled with a ideal fluid having density r. The gauge pressure at the centre of the cubical vessel is
The correct answer is:
Related Questions to study
physics-
The figure below shows four situations in which a gray liquid and a black liquid (which we known nothing about) are in a U tube.
In which of the following situation(s) of static equilibrium must the density of the gray liquid be greater than the density of the black liquid? (circle all appropriate cases)
The figure below shows four situations in which a gray liquid and a black liquid (which we known nothing about) are in a U tube.
In which of the following situation(s) of static equilibrium must the density of the gray liquid be greater than the density of the black liquid? (circle all appropriate cases)
physics-General
physics-
The figure below shows four situations in which a gray liquid and a black liquid (which we known nothing about) are in a U tube.
Which of the following situations does not show static equilibrium of liquids.
The figure below shows four situations in which a gray liquid and a black liquid (which we known nothing about) are in a U tube.
Which of the following situations does not show static equilibrium of liquids.
physics-General
physics-
An ideal monoatomic gas is carried around the cycle ABCDA as shown in the figure. The efficiency of the gas cycle is :
An ideal monoatomic gas is carried around the cycle ABCDA as shown in the figure. The efficiency of the gas cycle is :
physics-General
physics-
The initial state of an ideal gas is represented by the point a on the P-V diagram and its final state by the point e. The gas goes from the state a to the state e by three quasi stationary processes represented by
i) abe
ii) ace
iii) ade.
The heat absorbed by the gas is
The initial state of an ideal gas is represented by the point a on the P-V diagram and its final state by the point e. The gas goes from the state a to the state e by three quasi stationary processes represented by
i) abe
ii) ace
iii) ade.
The heat absorbed by the gas is
physics-General
physics-
The P.V. diagram of a certain process (Carnot cycle) is as shown in the figure.
The process is represented as
The P.V. diagram of a certain process (Carnot cycle) is as shown in the figure.
The process is represented as
physics-General
physics-
The following graphs shows two isotherms for a fixed mass of an ideal gas. The ratio of r.m.s. speed of the molecules at temperatures T1 and T2 is
The following graphs shows two isotherms for a fixed mass of an ideal gas. The ratio of r.m.s. speed of the molecules at temperatures T1 and T2 is
physics-General
physics-
A volume V-temperature T diagram was obtained when a given mass of gas was heated. During the heating process from state 1 to state 2, the pressure :
A volume V-temperature T diagram was obtained when a given mass of gas was heated. During the heating process from state 1 to state 2, the pressure :
physics-General
physics-
Two rods of same length and cross-sectional area are joined in series. Thermal conductivity of the rods are in ratio of 2 : 1.
The ends are maintained at temperatures qA and qB as shown with qA > qB and sides are thermally insulated.
Which of the following graph represents temperature gradient (dT/dx) against x in steady state
Two rods of same length and cross-sectional area are joined in series. Thermal conductivity of the rods are in ratio of 2 : 1.
The ends are maintained at temperatures qA and qB as shown with qA > qB and sides are thermally insulated.
Which of the following graph represents temperature gradient (dT/dx) against x in steady state
physics-General
physics-
Select the correct statement on the basis of the given graph :
Select the correct statement on the basis of the given graph :
physics-General
physics-
The load versus strain graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line
The load versus strain graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line
physics-General
physics-
The distribution of relative intensity I (
) of blackbody radiation from a solid body versus the wavelength is shown in the figure. If the Wien displacement law constant is 
mK, what is the approximate temperature of the object?
The distribution of relative intensity I () of blackbody radiation from a solid body versus the wavelength is shown in the figure. If the Wien displacement law constant is mK, what is the approximate temperature of the object?
physics-General
physics-
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
If x has the value calculated in above question. Then temperature of junction b or d is:
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
If x has the value calculated in above question. Then temperature of junction b or d is:
physics-General
physics-
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
physics-General
chemistry-
The formula of ferrocene is
The formula of ferrocene is
chemistry-General
physics-
A uniform rod having length L, is made of material having density r, coefficient of thermal expansion a and young's modulus Y. It is placed between two vertical walls having separation L and coefficient of friction m. What is the minimum rise in temperature so that the rod does not falls down on releasing.
A uniform rod having length L, is made of material having density r, coefficient of thermal expansion a and young's modulus Y. It is placed between two vertical walls having separation L and coefficient of friction m. What is the minimum rise in temperature so that the rod does not falls down on releasing.
physics-General
