MCQ Questions for Class 11 with Answers are prepared according to the Latest Exam Pattern. Students can solve those Thermal Properties of Matter MCQ Questions with Answers and examine their preparation level. The Thermal properties of depending depict the impact warmness have on numerous situations of depending. It’s something however actual property of depending and the temperature assists with characterizing the condition suggest country of the matter.
Important concepts of Thermal Properties of Matter are given under that we will learn on this chapter are:
- Thermal Expansion
- Heat Transfer
- Calorimetry
- Temperature and Heat
- Specific Heat Capacity
Have a look at the MCQ Questions for Class 11 Physics and cross-check your solutions at some point of preparation.
Practice MCQ Questions for class 11 Physics Chapter-Wise
1. Absorptive power of perfectly black body is
(a) Zero
(b) Infinity
(c) One
(d) Constant
2. In which process the rate of transfer of heat is maximum?
(a) Conduction
(b) Radiation
(c) Convection
(d) In all three heat is transferred with the same speed
3. The good absorber of heat are
(a) Non-emitter
(b) Poor-emitter
(c) Good-emitter
(d) Highly polished
4. Two stars A and B radiate maximum energy at the wavelengths of 360nm and 480nm respectively. Then the ratio of the surface temperatures of A and B is
(a) 3 : 4
(b) 81 : 256
(c) 4 : 3
(d) 256 : 81
5. Compared to a person with white skin another person with dark skin, will experience :
(a) Less heat and more cold
(b) More heat and more cold
(c) More heat and less cold
(d) Less heat and less cold
6. The best ideal black body is
(a) Lamp of charcoal heated to high temperature
(b) Metal coated with a black dye
(c) Glass surface coated with coalter
(d) Hollow enclosure blackened inside and having a small hole
7. If the temperature of the Sun gets doubled, the rate of energy received on the Earth will increase by a factor of:
(a) 2
(b) 4
(c) 8
(d) 16
8. The process of heat transfer in which heat is transferred with actual migration of medium particles is known as
(a) Conduction
(b) Convection
(c) Radiation
(d) Reflection
9. Emissivity of perfectly black body is
(a) 1
(b) 2
(c) 5
(d) 0
10. The reading of Centigrade thermometer coincides with that of Fahrenheit thermometer in a liquid. The temperature of the liquid is
(a) -40°C
(b) 100°C
(c) 313°C
(d) 0ºC
11. Expansion during heating
(a) generally decreases the density of a material
(b) None of these
(c) increases the weight of a material
(d) occurs only in solids
12. Which of the following will expand the most for same rise in temperature?
(a) Aluminium
(b) Wood
(c) Glass
(d) All will expand same
13. Assertion: The triple point of water is a standard fixed point in modern thermometry.
Reason: The triple point of a substance is unique i.e. it occurs at one particular set of values of pressure and temperature
(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion
(b) Assertion is incorrect, reason is correct
(c) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(d) None of these
14. A metal sheet with a circular hole is heated. The hole
(a) gets larger
(b) gets deformed
(c) gets smaller
(d) None of these
15. A solid ball of metal has a spherical cavity inside it. The ball is heated. The volume of cavity will
(a) increase
(b) decrease
(c) remain unchanged
(d) have its shape changed
16. Assertion: Water kept in an open vessel will quickly evaporate onthe surface of the moon.
Reason: The temperature at the surface of the moon is much higher than boiling point of the water.
(a) Assertion is correct, reason is incorrect
(b) None of these
(c) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(d) Assertion is correct, reason is correct; reason is a correct explanation for assertion
17. Mass of water which absorbs or emits the same amount of heat as is done by the body for the same rise or fall in temperature is known as
(a) water equivalent of the body
(b) latent heat capacity of the body
(c) specific heat capacity of the body
(d) thermal capacity of the body
18. The latent heat of vaporization of a substance is always
(a) greater than its latent heat of fusion
(b) less than its latent heat of fusion
(c) greater than its latent heat of sublimation
(d) equal to its latent heat of sublimation
19. A quantity of heat required to change the unit mass of a solid substance, from solid state to liquid state, while the temperature remains constant, is known as
(a) latent heat of fusion
(b) sublimation
(c) latent heat
(d) hoar frost
20. Newton's law of cooling holds good only, if the temperature difference between the body and the surroundings is
(a) less than 10°C
(b) more than 10°C
(c) less than 100°C
(d) more than 100°C
21. Heat capacity is equal to the product of
(a) mass and gas constant
(b) mass and specific heat
(c) latent heat and volume of water
(d) mass and Avogadro number
22. A piece of iron is heated in a flame. It first becomes dull red then becomes reddish yellow and finally turns to white hot. The correct explanation for the above observation is possible by using
(a) Stefan's law
(b) Wien's displacement law
(c) Kirchoff's law
(d) Newton's law of cooling
23. To keep constant time, watches are fitted with balance wheel made of -
(a) Invar
(b) Stainless steel
(c) Tungsten
(d) Platinum
24. When a body that is conducting heat is under a steady state condition, then the temperature of the body
(a) Increases with time
(b) Decreases with time
(c) Does not change with time and is same at all the points of the body
(d) Does not change with time but is different at different cross-sections of a body
25. Two thin blankets keep more hotness than one blanket of thickness equal to these two. The reason is
(a) Their surface area increases
(b) A layer of air is formed between these two blankets, which is bad conductor
(c) These have more wool
(d) They absorb more heat from outside
