×
Detail Form
We will send your result on your email id and phone no. please fill detail
1.
On a hilly region, water boils at 95
C. The temperature expressed in Fahrenheit is
C. The temperature expressed in Fahrenheit is
2.
A cylindrical rod having temperature 
and 
at its ends. The rate of flow of heat is 
. If all the linear dimensions are doubled keeping temperature constant then rate of flow of heat 
will be
and at its ends. The rate of flow of heat is . If all the linear dimensions are doubled keeping temperature constant then rate of flow of heat will be
3.
The gas thermometers are more sensitive than liquid thermometers because
4.
The graph shows the variation of temperature (T) of one kilogram of a material with the heat (H) supplied to it. At O, the substance is in the solid state. From the graph, we can conclude that
5.
Two rectangular blocks 
and 
of different metals have same length and same area of cross-section. They are kept in such a way that their cross-sectional area touch each other. The temperature at one end of is 
and that of at the other end is 
. If the ratio of their thermal conductivity is 1 : 3, then under steady state, the temperature of the junction in contact will be
and of different metals have same length and same area of cross-section. They are kept in such a way that their cross-sectional area touch each other. The temperature at one end of is and that of at the other end is . If the ratio of their thermal conductivity is 1 : 3, then under steady state, the temperature of the junction in contact will be
6.
The volume of a metal sphere increases by 0.24% when its temperature is raised by 40
. The coefficient of linear expansion of the metal is ...
.
. The coefficient of linear expansion of the metal is ....
7.
Flash light equipped with a new set of batteries, produces bright white light. As the batteries were out
8.
Water of volume 2 L in a container is heated with a coil of 1 kW at 27 . The lid of the container is open and energy dissipates at rate of 160
. In how much time temperature will rise from 27 to 77 [Given specific heat of water is 4.2 kJ 
]
. The lid of the container is open and energy dissipates at rate of 160. In how much time temperature will rise from 27 to 77 [Given specific heat of water is 4.2 kJ ]
9.
For proper ventilation of building, windows must be open near the bottom and top of the walls so as to let pass
10.
Two thermometers and are exposed in sun light. The valve of is pointed black, but that of is not pointed. The correct statement regarding this case is
and are exposed in sun light. The valve of is pointed black, but that of is not pointed. The correct statement regarding this case is