Physics-
General
Easy
Question
A fluid container is containing a liquid of density 
is accelerating upward with acceleration an along the inclined place of inclination 
as shown. Then the angle of inclination 
of free surface is
The correct answer is:
Related Questions to study
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The area of cross-section of the wider tube shown in figure is 800 cm2 If a mass of 12 kg is placed on the massless piston, the difference in heights h in the level of water in the two tubes is :
The area of cross-section of the wider tube shown in figure is 800 cm2 If a mass of 12 kg is placed on the massless piston, the difference in heights h in the level of water in the two tubes is :
physics-General
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A cone of radius R and height H is hanging inside a liquid of density by means of a string as shown in the figure. The force, due to the liquid acting on the slant surface of the cone is
A cone of radius R and height H is hanging inside a liquid of density by means of a string as shown in the figure. The force, due to the liquid acting on the slant surface of the cone is
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The figure shows a radiant energy spectrum graph for a black body at a temperature T. Identify the graph which correctly represents the spectral intensity versus wavelength graph at two temperatures T' and T (T < T')
The figure shows a radiant energy spectrum graph for a black body at a temperature T. Identify the graph which correctly represents the spectral intensity versus wavelength graph at two temperatures T' and T (T < T')
physics-General
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The figure shows a radiant energy spectrum graph for a black body at a temperature T. If the temperature of the body is raised to a higher temperature T', then choose the correct statement(s)
The figure shows a radiant energy spectrum graph for a black body at a temperature T. If the temperature of the body is raised to a higher temperature T', then choose the correct statement(s)
physics-General
physics-
The figure shows a radiant energy spectrum graph for a black body at a temperature T. Choose the correct statement(s)
The figure shows a radiant energy spectrum graph for a black body at a temperature T. Choose the correct statement(s)
physics-General
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An experiment is perfomed to measure the specific heat of copper. A lump of copper is heated in an oven, then dropped into a beaker of water. To calculate the specific heat of copper, the experimenter must know or measure the value of all of the quantities below EXCEPT the
An experiment is perfomed to measure the specific heat of copper. A lump of copper is heated in an oven, then dropped into a beaker of water. To calculate the specific heat of copper, the experimenter must know or measure the value of all of the quantities below EXCEPT the
physics-General
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The intensity of radiation emitted by the Sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies then the ratio of the surface temperature of the Sun and the North Star is
The intensity of radiation emitted by the Sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies then the ratio of the surface temperature of the Sun and the North Star is
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The spectral emissive power 
for a body at temperature T1 is plotted against the wavelength and area under the curve is found to be A. At a different temperature T2 the area is found to be 9A. Then 
=
The spectral emissive power for a body at temperature T1 is plotted against the wavelength and area under the curve is found to be A. At a different temperature T2 the area is found to be 9A. Then =
physics-General
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A composite rod made of three rods of equal length and cross-section as shown in the fig. The thermal conductivities of the materials of the rods are K/2, 5K and K respectively. The end A and end B are at constant temperatures. All heat entering the face A goes out of the end B there being no loss of heat from the sides of the bar. The effective thermal conductivity of the bar is
A composite rod made of three rods of equal length and cross-section as shown in the fig. The thermal conductivities of the materials of the rods are K/2, 5K and K respectively. The end A and end B are at constant temperatures. All heat entering the face A goes out of the end B there being no loss of heat from the sides of the bar. The effective thermal conductivity of the bar is
physics-General
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The ratio of the thermal resistance of the rod is
The ratio of the thermal resistance of the rod is
physics-General
physics-
Two rods A and B of different materials but same cross section are joined as in figure. The free end of A is maintained at 100°C and the free end of B is maintained at 0°C.
and rods are thermally insulated from sides to prevent heat losses then the temperature q of the junction of the two rods is
Two rods A and B of different materials but same cross section are joined as in figure. The free end of A is maintained at 100°C and the free end of B is maintained at 0°C. and rods are thermally insulated from sides to prevent heat losses then the temperature q of the junction of the two rods is
physics-General
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The temperature drop through each layer of a two layer furnace wall is shown in figure. Assume that the external temperature T1 and T3 are maintained constant and T1 > T3. If the thickness of the layers x1 and x2 are the same, which of the following statements are correct
The temperature drop through each layer of a two layer furnace wall is shown in figure. Assume that the external temperature T1 and T3 are maintained constant and T1 > T3. If the thickness of the layers x1 and x2 are the same, which of the following statements are correct
physics-General
physics-
Three identical rods AB, CD and PQ are joined as shown. P and Q are mid points of AB and CD respectively. Ends A, B, C and D are maintained at 0°C, 100°C, 30°C and 60°C respectively. The direction of heat flow in PQ is
Three identical rods AB, CD and PQ are joined as shown. P and Q are mid points of AB and CD respectively. Ends A, B, C and D are maintained at 0°C, 100°C, 30°C and 60°C respectively. The direction of heat flow in PQ is
physics-General
physics-
Six identical conducting rods are joined as shown in figure. Points A and D are maintained at temperature of 200°C and 20°C respectively. The temperature of junction B will be:
Six identical conducting rods are joined as shown in figure. Points A and D are maintained at temperature of 200°C and 20°C respectively. The temperature of junction B will be:
physics-General
physics-
Twelve conducting rods form the riders of a uniform cube of side 
. If in steady state, B and H ends of the rod are at 100°C and 0°C. Find the temperature of the junction 'A'
Twelve conducting rods form the riders of a uniform cube of side . If in steady state, B and H ends of the rod are at 100°C and 0°C. Find the temperature of the junction 'A'
physics-General
