Thermal Properties of Matter questions
823 published questions with worked solutions.
- The unit of thermal conductivity is :
- Rate of flow of heat through a cylindrical rod is 'H_1'. The temperature at the ends of the road are 'T_1' and 'T_2'. If all the...
- Railway track is made of steel segments separated by small gaps to allow for linear expansion. The segment of track is 10 m long...
- Two rods, one of copper (Cu) and the other of iron (Fe) having initial lengths L_1 and L_2 respectively are connected together to...
- Two rods, one of aluminium and the other of steel, having initial lengths L_1 and L_2 are connected together to form a single rod...
- Given that 'x' joule of heat is incident on a body. Out of that, total heat reflected and transmitted is 'y' joule. The...
- Two spherical black bodies of radii R_1 and R_2 and with surface temperature T_1 and T_2 respectively radiate the same power. The...
- Two bodies 'X' and 'Y' at temperatures ' T_1 ' K and ' T_2 ' K respectively have the same dimensions. If their emissive powers...
- Two rods of same length & material transfer a given amount of heat in 12 s when they are joined end to end. But when they are...
- A sphere is temperature 600K. In an external environment of 200 K, its cooling rate is 'R'. When the temperature of the sphere...
- The volume of a metal sphere increases by 0.30% when it's temperature is raised by 50^0C. The coefficient of linear expansion of...
- Heat energy is incident on the surface at the rate of 1000 J/min. If co-efficient of absorption is 0.8 and coefficient of...
- A clock with iron pendulum keeps correct time at 15^0C. If the room temperature is 20^0C the error in second per day will be...
- The coefficient of linear expansion of brass and steel rod are ' _1' and ' _2' respectively. Lengths of brass and steel rods are...
- The radiation energy density per unit wavelength at temperature T is maximum at a wavelength _0. At temperature 2T, it will have...
- An object is cooled from 75^0C to 65^0C in 2 min. The time, it takes to cool from 55^0C to 45^0C is [The temperature of...
- A cylindrical metallic rod in thermal contact with two reservoirs of heat at its two ends conduct an amount of heat 'Q_1' in time...
- A black sphere has radius 'R' whose rate of radiation id 'E' at temperature 'T'. If radius is made ' R 3 ' and temperature '3T',...
- A black body radiates power 'P' and maximum energy is radiate by it at a wavelength _0. The temperature of the black body is now...
- The temperature of a liquid falls from 365 K to 359K in 3 minutes. The time during which temperature of this liquid fall from 342...
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