Physics-
General
Easy
Question
The graph signifies
- Adiabatic expansion of a gas
- Isothermal expansion of a gas
- Change of state from liquid to solid
- Cooling of a heated solid
The correct answer is: Change of state from liquid to solid
Related Questions to study
physics-
The figure given below shows the cooling curve of pure wax material after heating. It cools from 
to 
and solidifies along 
If 
and 
are respective values of latent heat and the specific heat of the liquid wax, the ratio 
is
The figure given below shows the cooling curve of pure wax material after heating. It cools from to and solidifies along If and are respective values of latent heat and the specific heat of the liquid wax, the ratio is
physics-General
physics-
One end of a thermally insulated rod is kept at a temperature 
and other at 
. The rod is composed of two sections of lengths 
and 
and thermal conductivities 
and 
respectively. The temperature at the interface of the two sections is
One end of a thermally insulated rod is kept at a temperature and other at . The rod is composed of two sections of lengths and and thermal conductivities and respectively. The temperature at the interface of the two sections is
physics-General
maths-
If 
and theperiod of 
is 
, then 
If and theperiod of is , then
maths-General
physics-
The adjoining diagram shows the spectral energy density distribution 
of a black body at two different temperatures. If the areas under the curves are in the ratio 16 : 1, the value of temperature 
is
The adjoining diagram shows the spectral energy density distribution of a black body at two different temperatures. If the areas under the curves are in the ratio 16 : 1, the value of temperature is
physics-General
physics-
Five identical rods are joined as shown in figure. Point and are maintained at temperature 
and 
respectively. The temperature of junction will be
Five identical rods are joined as shown in figure. Point and are maintained at temperature and respectively. The temperature of junction will be
physics-General
Maths-
If 
, then 
_______________
If , then _______________
Maths-General
physics-
Which one of the following is 
graph for perfectly black body? 
is the frequency of radiation with maximum intensity, is the absolute temperature.
Which one of the following is graph for perfectly black body? is the frequency of radiation with maximum intensity, is the absolute temperature.
physics-General
physics-
Three rods made of same material and having same cross-section are joined as shown in the figure. Each rod is of same length. The temperature at the junction of the three rods is
Three rods made of same material and having same cross-section are joined as shown in the figure. Each rod is of same length. The temperature at the junction of the three rods is
physics-General
physics-
The figure shows a glass tube (linear co-efficient of expansion is 
) completely filled with a liquid of volume expansion co-efficient 
On heating length of the liquid column does not change. Choose the correct relation between 
and
The figure shows a glass tube (linear co-efficient of expansion is ) completely filled with a liquid of volume expansion co-efficient On heating length of the liquid column does not change. Choose the correct relation between and
physics-General
physics-
The spectrum of a black body at two temperatures 
and 
is shown in the figure. Let 
and 
be the areas under the two curves respectively. The value of 
is
The spectrum of a black body at two temperatures and is shown in the figure. Let and be the areas under the two curves respectively. The value of is
physics-General
physics-
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
physics-General
physics-
A bimetallic strip consists of metals 
and 
. It is mounted rigidly at the base as shown. The metal has a higher coefficient of expansion compared to that for metal . when bimetallic strip is placed in a cold bath
A bimetallic strip consists of metals and . It is mounted rigidly at the base as shown. The metal has a higher coefficient of expansion compared to that for metal . when bimetallic strip is placed in a cold bath
physics-General
physics-
The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity 
and 2 and thickness 
and 4, respectively are and 
. The rate of heat transfer through the slab, in a steady state is 
, with 
equals to
The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity and 2 and thickness and 4, respectively are and . The rate of heat transfer through the slab, in a steady state is , with equals to
physics-General
physics-
A solid material is supplied with heat at constant rate and the temperature of the material changes as shown. From the graph, the false conclusion drawn is
A solid material is supplied with heat at constant rate and the temperature of the material changes as shown. From the graph, the false conclusion drawn is
physics-General
physics-
The energy distribution 
with the wavelength 
for the black body radiation at temperature 
is shown in the figure. As the temperature is increased the maxima will
The energy distribution with the wavelength for the black body radiation at temperature is shown in the figure. As the temperature is increased the maxima will
physics-General
