All MCQs in the chapter 3 (Heat and Optics) are given:
Topics Covered:
- Heat and Temperature.
- Modes of transfer of heat
- Gas laws
- Optics
1. ______ is an energy which produces sensation of hotness or warmness.
A] Temperature
B] Radiation
C] Heat
D] None of these
2. What is the S.I unit of heat ?
A] joule (J)
B] Celsius (C)
C] kelvin
D] kilocalorie (kcal)
3. The amount of heat energy required to increase the temperature of one gram of water through 10 C is called as ______
A] One joule
B] One calorie
C] One kilocalorie
D] None of these
4. The amount of heat energy required to increase the temperature of 1/4.186 gram of water through 10 C is called as ______
A] One joule
B] One calorie
C] One kilocalorie
D] None of these
5. The amount of heat energy required to increase the temperature of one kilogram of water through 10 C is called as ______
A] One joule
B] One calorie
C] One kilocalorie
D] None of these
6. The _______ is the measure of degree of hotness or coldness of a body.
A] Celsius
B] Temperature
C] Kelvin
D] Heat
7. What is the S.I unit of temperature ?
A] Degree Celsius
B] Ampere
C] Degree Kelvin
D] None of these
8. If heat is supplied to a body, its temperature _______ and if heat is removed from a body its temperature _______
A] Increases, Decreases
B] Increases, Remains Constant
C] Decreases, Increases
D] Decreases, Remains Constant
9. Which of the following is the correct statement ?
A] Heat is the sum of energies of all molecules in the body.
B] Heat is an extensive property.
C] Heat flows from higher temperature to lower temperature.
D] All of these
10. Which of the following is the wrong statement ?
A] Temperature determines the direction of flow of heat.
B] Temperature is the average K.E of the molecules of the body.
C] Temperature is an extensive property.
D] Temperature is the effect.
11. In the Fahrenheit scale of temperature, lower fixed point is _______
A] 0° F
B] 32° F
C] 1° F
D] 172° F
12. In the Kelvin scale or absolute scale of temperature, lower fixed point is _______
A] 73 k
B] 173 k
C] 373 k
D] 273 k
13. _______ is the temperature at which pressure and volume of a gas theoretically becomes zero.
A] Absolute zero temperature
B] NTP
C] Zero pressure
D] None of these
14. Transfer of heat takes place in ______
A] Convection
B] Radiation
C] Conduction
D] All of these
15. _______ is a process of transfer of heat from a part of body at higher temperature to part of body at lower temperature without actual movement of particles.
A] Convection
B] Conduction
C] Radiation
D] NTP
16. What is the process of transfer of heat in the form of electromagnetic waves, from a body at higher temperature to a body at lower temperature without necessity of the intervening medium ?
A] Convection
B] Conduction
C] Radiation
D] None of these
17. _______ is the process of transfer of heat from part of a body at higher temperature to part of a body at lower temperature with actual movement of particles.
A] Convection
B] Conduction
C] Radiation
D] None of these
18. Which of the following statement is wrong about good conductor of heat ?
A] The materials through which heat conducts easily and immediately.
B] Value of K is low.
C] Value of R is low
D] Al , Cu, all metals are good conducter of heat.
19. Which of the following statement is correct about bad conductor of heat ?
A] The materials through which heat is not conducted easily.
B] Value of K is high.
C] Value of R is low
D] copper is a bad conducter of heat.
20. Which of the following is/are applications of conduction ?
A] Soldering iron
B] Handles of kettles and spoons
C] Heat sinks
D] All of these
21. Which of the following is not the application of conduction ?
A] Heat sinks
B] Refrigerators
C] Car radiator
D] Woolen clothes or blankets
22. Which of the following is/are the applications of convection ?
A] Room ventilation
B] Electric fans
C] Refrigerators
D] All of these
23. Which of the following is not the application of convection ?
A] Heat sinks
B] Gas filled coiled electric lamps
C] Formation of trade winds
D] Cooling system in automobile engines
24. Which of the following is/are the applications of radiation ?
A] Heat radiators
B] The teapots and kettle
C] Thermal radiator
D] All of these
25. Which of the following is not the application of radiation ?
A] Heat radiators
B] The teapots and kettle
C] Gas filled coiled electric lamps
D] Thermal radiator
A] Temperature
B] Radiation
C] Heat
D] None of these
Answer: C] Heat
2. What is the S.I unit of heat ?
A] joule (J)
B] Celsius (C)
C] kelvin
D] kilocalorie (kcal)
Answer: A] joule (J)
3. The amount of heat energy required to increase the temperature of one gram of water through 10 C is called as ______
A] One joule
B] One calorie
C] One kilocalorie
D] None of these
Answer: B] One calorie
4. The amount of heat energy required to increase the temperature of 1/4.186 gram of water through 10 C is called as ______
A] One joule
B] One calorie
C] One kilocalorie
D] None of these
Answer: A] One joule
5. The amount of heat energy required to increase the temperature of one kilogram of water through 10 C is called as ______
A] One joule
B] One calorie
C] One kilocalorie
D] None of these
Answer: C] One kilocalorie
6. The _______ is the measure of degree of hotness or coldness of a body.
A] Celsius
B] Temperature
C] Kelvin
D] Heat
Answer: B] Temperature
7. What is the S.I unit of temperature ?
A] Degree Celsius
B] Ampere
C] Degree Kelvin
D] None of these
Answer: C] Degree Kelvin
8. If heat is supplied to a body, its temperature _______ and if heat is removed from a body its temperature _______
A] Increases, Decreases
B] Increases, Remains Constant
C] Decreases, Increases
D] Decreases, Remains Constant
Answer: A] Increases, Decreases
9. Which of the following is the correct statement ?
A] Heat is the sum of energies of all molecules in the body.
B] Heat is an extensive property.
C] Heat flows from higher temperature to lower temperature.
D] All of these
Answer: D] All of these
10. Which of the following is the wrong statement ?
A] Temperature determines the direction of flow of heat.
B] Temperature is the average K.E of the molecules of the body.
C] Temperature is an extensive property.
D] Temperature is the effect.
Answer: C] Temperature is an extensive property.
11. In the Fahrenheit scale of temperature, lower fixed point is _______
A] 0° F
B] 32° F
C] 1° F
D] 172° F
Answer: B] 32° F
12. In the Kelvin scale or absolute scale of temperature, lower fixed point is _______
A] 73 k
B] 173 k
C] 373 k
D] 273 k
Answer: D] 273 k
13. _______ is the temperature at which pressure and volume of a gas theoretically becomes zero.
A] Absolute zero temperature
B] NTP
C] Zero pressure
D] None of these
Answer: A] Absolute zero temperature
14. Transfer of heat takes place in ______
A] Convection
B] Radiation
C] Conduction
D] All of these
Answer: D] All of these
15. _______ is a process of transfer of heat from a part of body at higher temperature to part of body at lower temperature without actual movement of particles.
A] Convection
B] Conduction
C] Radiation
D] NTP
Answer: B] Conduction
16. What is the process of transfer of heat in the form of electromagnetic waves, from a body at higher temperature to a body at lower temperature without necessity of the intervening medium ?
A] Convection
B] Conduction
C] Radiation
D] None of these
Answer: C] Radiation
17. _______ is the process of transfer of heat from part of a body at higher temperature to part of a body at lower temperature with actual movement of particles.
A] Convection
B] Conduction
C] Radiation
D] None of these
Answer: A] Convection
18. Which of the following statement is wrong about good conductor of heat ?
A] The materials through which heat conducts easily and immediately.
B] Value of K is low.
C] Value of R is low
D] Al , Cu, all metals are good conducter of heat.
Answer: B] Value of K is low.
19. Which of the following statement is correct about bad conductor of heat ?
A] The materials through which heat is not conducted easily.
B] Value of K is high.
C] Value of R is low
D] copper is a bad conducter of heat.
Answer: A] The materials through which heat is not conducted easily.
20. Which of the following is/are applications of conduction ?
A] Soldering iron
B] Handles of kettles and spoons
C] Heat sinks
D] All of these
Answer: D] All of these
21. Which of the following is not the application of conduction ?
A] Heat sinks
B] Refrigerators
C] Car radiator
D] Woolen clothes or blankets
Answer: B] Refrigerators
22. Which of the following is/are the applications of convection ?
A] Room ventilation
B] Electric fans
C] Refrigerators
D] All of these
Answer: D] All of these
23. Which of the following is not the application of convection ?
A] Heat sinks
B] Gas filled coiled electric lamps
C] Formation of trade winds
D] Cooling system in automobile engines
Answer: A] Heat sinks
24. Which of the following is/are the applications of radiation ?
A] Heat radiators
B] The teapots and kettle
C] Thermal radiator
D] All of these
Answer: D] All of these
25. Which of the following is not the application of radiation ?
A] Heat radiators
B] The teapots and kettle
C] Gas filled coiled electric lamps
D] Thermal radiator
Answer: C] Gas filled coiled electric lamps
 MCQs - Chapter 3: Heat and Optics (Physics) MCQs |MSBTE I Scheme){kind=link}
0 Comments
Your comments are helpful for us in the upcoming period.!