Question 2 :
State whether given statement is True or False<br/>The heat coming from the sun travels by convection

Question 3 :
From below expressions, by which heat capacity of a body can be measured?<br>

Question 4 :
Which one of the liquids, has the highest specific heat capacity?

Question 6 :
If we place our hand below a lighted electric&#160;bulb. We feel warmer because of :

Question 7 :
Two metallic blocks $P$ and $Q$ of masses in ratio $2 : 1$ are given same amount of heat. If their temperature rise by same amount, compare their specific heat capacities.

Question 9 :
When an organic compound is present in an aqueous medium and is less soluble in any organic solvent then it is separated by?

Question 10 :
A) Heat transfer by conduction and convection require a material medium.B) Heat transfer by radiation doesn't require a material medium.

Question 11 :
A container contains $0.25$ kg of a liquid at its boiling temperature. If the latent heat of fusion for the liquid is $500$ Joules/ kg and the latent heat of vaporization for the liquid is $1000$ Joules/ Kg. How much heat must be added to the liquid to boil all of the liquid away?

Question 13 :
A new temperature scale uses X as a unit of temperature, where the numerical value of the temperature $t_x$ in this scale is related to the absolute temperature T by $t_x$ = 3T + 300. If the specific heat of a material using this unit is 1400 J $kg^{-1} K^{-1}$ its specific heat in the S.1. system of units is :

Question 15 :
The temperature of a furnace is 2327$^o$C and the intensity of maximum in its spectrum is nearly at 12000 A. If the intensity in the spectrum of a star is maximum nearly at 4800 A, then the surface&#160;temperature of the star is

Question 16 :
Two bodies $A$ and $B$ are kept in an evacuated chamber at $27^oC$. The temperature of $A$ and $B$ are $327^oC$ and $427^oC$ respectively. The ratio of rates of loss of heat from A and B will be :<br/>

Question 19 :
A piece of copper weighing 500 g is heated to $100^oC$ and dropped into 200g of water at $25^oC$. Find the temperature of the mixture. The specific heat of Cu is $0.42 J g^{-1} {\;}^oC^{-1}$.

Question 24 :
The water is used as a coolant in motor car engines because it has a very ...... specific latent heat of fusion.

Question 25 :
In a steady state the temperature of the ends A and&#160;B of a 20 cm long rod AB is 100$^o$C and 0$^o$C. The temperature at the point c distant 9 cm from a is :

Question 26 :
The temperature of a body is 3000K. The wavelength corresponding to maximum emission of radiation will be <br>

Question 27 :
The amount of heat required to change 1 kg of ice to water without a change in temperature is known as :

Question 28 :
Which of the following qualities are best suited for handling a cooking utensil?

Question 29 :
A piece of blue glass heated to a high temperature and piece of red glass at room temperature, are taken inside a dimly lit room, then

Question 30 :
A beaker contains 40 g of water at $20^\circ C$. Now 50 g of ice is put into the beaker. The resulting temperature will be<br>