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

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

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Thermal Properties of Matter Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

(a) Zero
(b) Infinity
(c) One
(d) Constant

(c) One

(a) 50 cal/cm²s
(b) 250 cal/cm²s
(c) 80 cal/cm²s
(d) 100 cal/cm²s

(c) 80 cal/cm²s

(a) 30°C
(b) 28°C
(c) 36°C
(d) 32°C

(a) 30°C

(a) Combustion
(c) Convection
(d) Conduction

(a) t1 – t2 = t3
(b) t1 < t2 < t3

(c) t1 > t2 > t3
(d) t1 < t2 > t3

(b) t1 < t2 < t3

## Q6. The good absorber of heat are

(a) Non-emitter
(b) Poor-emitter
(c) Good-emitter
(d) Highly polished

(c) Good-emitter

(a) 256 : 81
(b) 81 : 256
(c) 3 : 4
(d) 4 : 3

(d) 4 : 3

## Q8. 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

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

(a) 50 sec

## 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

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

(d) 16

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

(b) Convection

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

(b) W/ m² K²

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

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

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

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

a) 1002.4