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General
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Question
If are heat required to raise the temperature of one gram of water by one degree in Celsius, Kelvin and Fahrenheit temperature scales respectively then :–
The correct answer is:
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Two different rods A and B are kept as shown in figure. The variation of temperature of different cross sections with distance is plotted in a graph shown in figure. The ratio of thermal conductivities of A and B is
Two different rods A and B are kept as shown in figure. The variation of temperature of different cross sections with distance is plotted in a graph shown in figure. The ratio of thermal conductivities of A and B is
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Three rods of the same dimensions have thermal conductivities . They are arranged as shown, with their ends at . The temperature of their junction is: -
Three rods of the same dimensions have thermal conductivities . They are arranged as shown, with their ends at . The temperature of their junction is: -
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The coefficient of apparent expansion of a liquid when determined using two different vessels A and B are and respectively. If the coefficient of linear expansion of the vessel A is , the coefficient of linear expansion of the vessel B is:
The coefficient of apparent expansion of a liquid when determined using two different vessels A and B are and respectively. If the coefficient of linear expansion of the vessel A is , the coefficient of linear expansion of the vessel B is:
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Bars of two different metals are bolted together, as shown in figure. The distance x does not change with temperature if:–
Bars of two different metals are bolted together, as shown in figure. The distance x does not change with temperature if:–
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The variation of lengths of two metal rods A and B with change in temperature is shown in figure. The ratio of A B is:–
The variation of lengths of two metal rods A and B with change in temperature is shown in figure. The ratio of A B is:–
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In a vertical U–tube containing a liquid, the two arms are maintained at different temperatures, and . The liquid columns in the two arms have heights and respectively. The coefficient of volume expansion of the liquid is equal to:–
In a vertical U–tube containing a liquid, the two arms are maintained at different temperatures, and . The liquid columns in the two arms have heights and respectively. The coefficient of volume expansion of the liquid is equal to:–
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Two absolute scales and assigned numerical values 200 and 450 to the triple point of water. What is the relation between and ?
Two absolute scales and assigned numerical values 200 and 450 to the triple point of water. What is the relation between and ?
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The graph AB shown in figure is a plot of temperature of a body in degree Celsius and degree Fahrenheit. Then :–
The graph AB shown in figure is a plot of temperature of a body in degree Celsius and degree Fahrenheit. Then :–
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One mole of an ideal monoatomic gas undergoes a cyclic process as shown in figure. Temperature at point 1 = 300 K and process 2-3 is isothermal. The efficiency of cycle is
One mole of an ideal monoatomic gas undergoes a cyclic process as shown in figure. Temperature at point 1 = 300 K and process 2-3 is isothermal. The efficiency of cycle is
Physics-General
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One mole of an ideal monoatomic gas undergoes a cyclic process as shown in figure. Temperature at point 1 = 300 K and process 2-3 is isothermal. Heat capacity of process is
One mole of an ideal monoatomic gas undergoes a cyclic process as shown in figure. Temperature at point 1 = 300 K and process 2-3 is isothermal. Heat capacity of process is
Physics-General
Physics-
One mole of an ideal monoatomic gas undergoes a cyclic process as shown in figure. Temperature at point 1 = 300 K and process 2-3 is isothermal. Net work done by gas in complete cycle is
One mole of an ideal monoatomic gas undergoes a cyclic process as shown in figure. Temperature at point 1 = 300 K and process 2-3 is isothermal. Net work done by gas in complete cycle is
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Physics-
At a liquid is filled upto 10 cm height in a container of glass of length 20 cm and cross-sectional area 100 cm2 Scale is marked on the surface of container. This scale gives correct reading at .°C–1. The reading of scale at 40°C is-
At a liquid is filled upto 10 cm height in a container of glass of length 20 cm and cross-sectional area 100 cm2 Scale is marked on the surface of container. This scale gives correct reading at .°C–1. The reading of scale at 40°C is-
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Physics-
At a liquid is filled upto 10 cm height in a container of glass of length 20 cm and cross-sectional area 100 cm2 Scale is marked on the surface of container. This scale gives correct reading at .°C–1.The actual height of liquid at 40°C is-
At a liquid is filled upto 10 cm height in a container of glass of length 20 cm and cross-sectional area 100 cm2 Scale is marked on the surface of container. This scale gives correct reading at .°C–1.The actual height of liquid at 40°C is-
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Physics-
At a liquid is filled upto 10 cm height in a container of glass of length 20 cm and cross-sectional area 100 cm2 Scale is marked on the surface of container. This scale gives correct reading at .°C–1. The volume of liquid at is :–
At a liquid is filled upto 10 cm height in a container of glass of length 20 cm and cross-sectional area 100 cm2 Scale is marked on the surface of container. This scale gives correct reading at .°C–1. The volume of liquid at is :–
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Physics-
One mole of a monoatomic ideal gas occupies two chambers of a cylinder partitioned by means of a movable piston. The walls of the cylinder as well as the piston are thermal insulators. Initially equal amounts of gas fill both the chambers at A coil is burnt in the left chamber which absorbs heat and expands, pushing the piston to the right. The gas on the right chamber is compressed until to pressure becomes 32 The change in internal energy of the gas in the left chamber is
One mole of a monoatomic ideal gas occupies two chambers of a cylinder partitioned by means of a movable piston. The walls of the cylinder as well as the piston are thermal insulators. Initially equal amounts of gas fill both the chambers at A coil is burnt in the left chamber which absorbs heat and expands, pushing the piston to the right. The gas on the right chamber is compressed until to pressure becomes 32 The change in internal energy of the gas in the left chamber is
Physics-General