Thermal Properties of Matter — practice questions
54 curated practice questions from Thermal Properties of Matter (Physics Class 11, CBSE) — 54 easy. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Two spheres A and B are made of the same material and have the same radius. Sphere A is hollow and sphere B is solid…
- For transmission of heat from one place to the other, medium is required in
- In the question number 14, the equivalent thermal conductivity of the compound bar is
- 10 g of ice at 0°C is mixed with 100 g of water at 50°C in a calorimeter. The final temperature of the mixture is…
- If α, β and γ are coefficients of linear, superficial and volume expansion respectively, then
- Which of the following graphs correctly shows variation of coefficient of volume expansion of copper as a function of…
- There is a hole in the middle of a copper plate. When heating the plate, diameter of hole would
- A pan filled with hot food cools from 94 °C to 86 °C in 2 minutes when the room temperature is at 20 °C. The time taken…
- Two spheres of the same material have radii 1 m and 4 m and temperatures 4000 K and 2000 K respectively. The energy…
- To increase the length of brass rod by 2% its temperature should increase by ( a = 0.00002 °C –1 )
- If a ball of 80 kg mass hits an ice cube and temperature of ball is 100 °C, then how much ice converted into water?…
- A person weighing 50 kg takes in 1500 k Cal diet per day. If this energy were to be used in heating the body of person…
- The coefficient of volume expansion of liquid is g . The fractional change in its density for D T rise in temperature is
- Refer to the plot of temperature versus time showing the changes in the state of ice on heating (not to scale). Which…
- Which one of the following substances is highest specific heat capacity at room temperature and atmospheric pressure?
- The latent heat of vaporisation of a substance is always
- The sprinkling of water reduces slightly the temperature of a closed room because
- If 10 g of ice is added to 40 g of water at 15°C, then the temperature of the mixture is (specific heat of water = 4.2…
- A cubical thermocole ice box of side 20 cm has a thickness 5 cm. If 5 kg of ice is put in the box, the amount of ice…
- A rectangular block is heated from 0°C to 100°C. The percentage increase in its length is 0.2%. The percentage increase…
- The temperature of equal masses of three different liquids A , B and C are 12 °C, 19 °C and 28 °C respectively. The…
- The volume of a metal sphere increases by 0.24% when its temperature is raised by 40°C. The coefficient of linear…
- Experimental investigations show that the intensity of solar radiation is maximum for a wavelength 480 nm in the…
- A bimetallic strip is made of aluminium and steel (α Al > α steel ). On heating, the strip will
- In which of the following process convection does not take place primarily?
- If λ m denotes the wavelength at which the radiative emission from a black body at a temperature T K is maximum, then
- Three metal rods of the same material and identical in all respects are joined as shown in the figure. The temperatures…
- A block of ice at –8°C is slowly heated and converted to steam at 100°C. Which of the following curves represents the…
- Rays from the sun are focused by a lens of diameter 5 cm on to a block of ice and 10 g of ice is melted in 20 min…
- The rate of cooling at 600 K, if surrounding temperature is 300 K is H . The rate of cooling at 900 K is
- A wall is made of equally thick layers A and B of different materials. Thermal conductivity of A is twice that of B …
- If the temperature of the Sun were to increase from T to 2 T and its radius from R to 2 R . The ratio of power…
- Which of the following graph is best explanation of cooling of hot water with time?
- At 50°C, a brass rod has a length 50 cm and a diameter 2 mm. It is joined to a steel rod of the same length and…
- When a thermometer is taken from the melting ice to a warm liquid, the mercury level rises to 2 5 ^ th of the distance…
- The graph between two temperature scales A and B is shown in figure. Between upper fixed point and lower fixed point…
- The density of water at 4°C is 1000 kg m –3 and at 100°C it is 958.4 kg m –3 . The coefficient of volume expansion of…
- The temperature which has same numerical value on Celsius and Fahrenheit scale is
- A metal rod of length 10 cm and diameter 2 cm is covered with a non conducting substance. One end of it is maintained…
- A rectangular body has maximum wavelength l m at 2000 K. Its corresponding wavelength at 3000 K will be
- An ice cube of mass 0.1 kg at 0°C is placed in an isolated container which is at 227°C. The specific heat s of the…
- “The rate of loss of heat – dQ / dt of the body is directly proportional to the temperature difference D T = ( T 2 – T…
- Two rods of equal length and diameter have thermal conductivities 3 and 4 units respectively. If they are joined in…
- A 10 kW drilling machine is used to drill a bore in a small aluminium block of mass 8 kg. Find the rise in temperature…
- When 1.5 kg of ice at 0°C mixed with 2 kg of water at 70°C in a container, the resulting temperature is 5°C the heat of…
- If the temperature of hot black body is raised by 5%, rate of heat energy radiated would be increased by how much…
- A glass full of hot milk is poured on the table. It begins to cool gradually. Which of the following is incorrect?
- A sphere, a cube and a thin circular plate, all of same material and same mass are initially heated to same high…
- Consider a composite slab consiste of two different materials having equal thickness and thermal conductivities K and 2…
- Which of the following graph shows the variation of density of water with increase in temperature?
- The wavelength of maximum intensity of radiation emitted by a star is 289.8 nm. The radiation intensity of the star is…
- Two bars of same length and same cross-sectional area but of different thermal conductivities K 1 and K 2 are joined…
- Length of a wire at room temperature is 4.55 m, when the temperature increases upto 100°C then its length becomes 4.57…
- The temperature of a radiating body increases by 30%. Then the increase in the amount of radiation is