MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers

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Here you will find NCERT MCQ Questions for Class 11 Physics with Answers PDF Free Download based on the important concepts and topics given in the textbook as per CBSE new exam pattern. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Class 11 Physics. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

Q1. Sweet makers do not clean the bottom of cauldron because

a) black and rough surface absorbs more heat
b) absorption power of black and bright surface is more.
c) transmission power of black and rough surface is more.
d) emission power of black and bright surface is more

a) black and rough surface absorbs more heat

Q2. 4200 J of work is required for

a) increasing the temperature of 100 g of water through 10°C
b) increasing the temperature of 1 kg of water through 10°C
c) increasing the temperature of 500 g of water through 10°C
d) increasing the temperature of 10 g of water through 10°C

a) increasing the temperature of 100 g of water through 10°C

Q3. 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

a) greater than its latent heat of fusion

Q4. Which of the following statements regarding specific heat capacity of a substance are correct ? It depends on
I. mass of substance.
II. nature of substance.
III. temperature of substance.
IV. volume of substance.

a) II and III
b) None of these
c) I and II
d) III and IV

a) II and III

Q5. 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

a) latent heat of fusion

Q6. Newton’s law of cooling is applicable for

a) small excess of temperature over the surrounding
b) large excess of temperature over the surrounding
c) None of these
d) any excess of temperature over the surrounding

a) small excess of temperature over the surrounding

Q7. A person with dark skin as compared to a person with white skin will experience

(a) Less heat and less cold
(b) More heat and more cold
(c) More heat and less cold
(d) Less heat and more cold.

(b) More heat and more cold

Q8. A cup of tea cools from 80°C to 60°C in one minute. The ambient temperature is 30°C. in cooling from 60°C to 50°C, it will take.

(a) 50 sec
(b) 90 sec
(c) 60 sec
(d) 30 sec

(a) 50 sec

Q9. Two marks on a glass rod 10 cm apart are found to increase their distance by 0.08 mm when the rod is heated from 0°C to 100°C. A flask made of the same glass as that of rod measures a volume of 1000 cc at 0°C. The volume it measures at 100°C in cc is

a) 1002.4
b) 1008.2
c) 1004.2
d) 1006.4

a) 1002.4

Q10. 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

(d) Hollow enclosure blackened inside and having a small hole

Q11. The earth intercepts approximately one billionth of the power radiated by the sun. if the surface temperature of the sun were to drop by a factor of 2, the average radiant energy incident on earth per second would reduce by factor of

(a) 2
(b) 4
(c) 8
(d) 16

(d) 16

Q12. The process of heat transfer in which heat is transferred with actual migration of medium particles is known as (AFMC-94)

(a) Conduction
(b) Convection
(c) Radiation
(d) Reflection

(b) Convection

Q13. Unit of Stefans constant is given by

(a) W/ m K²
(b) W/ m² K²
(c) W²/ m² K4
(d) W/ mK

(b) W/ m² K²

Q14. 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

a) 40°C

Q15. 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

a) generally decreases the density of a material

Q16. Which of the following will expand the most for same rise in temperature?

a) Aluminium
b) Wood
c) Glass
d) All will expand same

a) Aluminium

Q17. An iron tyre is to be fitted on to a wooden wheel 1m in diameter. The diameter of tyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (the coefficient of cubical expansion of iron is 3.6 × 10–5/°C)

a) 500°C
b) 334°C
c) 1000°C
d) 167°C

a) 500°C

Q18. 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

a) Assertion is correct, reason is correct; reason is a correct explanation for assertion

Q19. A metal sheet with a circular hole is heated. The hole

a) gets larger
b) gets deformed
c) gets smaller
d) None of these

a) gets larger

Q20.A solid ball of metal has a spherical cavity inside it. The balln is heated. The volume of cavity will

a) increase
b) decrease
c) remain unchanged
d) have its shape changed

a) increase

Q21. 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

a) Assertion is correct, reason is incorrect

Class 11 Physics MCQs Questions with Answers Chapter Wise

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