10th Class Physics Unit 11: Thermal Expansion Solved MCQs (FBISE)
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10th Class Physics Chapter 2 MCQs Solved FBISE
Choose the best possible option in the following questions.
National Book Foundation (NBF) Matric Physics Solved Exercises
(1)
During a hot summer day, a metal bridge might expands slightly. This expansion is caused by:
A) the bridge rusting and weakening.
B) the metal atoms in the bridge vibrating more intensely.
C) the weight of cars driving over the bridge.
D) a decrease in the air pressure around the bridge.
Correct option is (b)
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(2)
Fog forms on a cold window pane in the morning. Which change of state is occurring?
A) Melting
B) Boiling
C) Condensation
D) Deposition
Correct option is (c)
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(3)
Which process involves the change of state from a gas to a solid without passing through the liquid phase?
A) Deposition
B) Melting
C) Freezing
d) Sublimation
Correct option is (a)
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(4)
Boiling point of water is:
A) 212 ºC
B) 212 ºF
C) 100 K
D) 373 ºC
Correct option is (b)
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(5)
$$J\;kg^{-1}\;K^{-1}$$
is the unit of:
A) specific Heat Capacity
B) heat Capacity
C) latent Heat of Fusion
D) heat Energy
Correct option is (a)
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Every single problem in this 10th class physics chapter 2 mcqs solved fbise guide directly follows the new National Book Foundation curriculum style.
(6)
Evaporation takes place from:
A) surface
B) bottom
C) center
D) any location
Correct option is (a)
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(7)
Relation between linear and volume expansion of solids is:
A) β = α/3
B) β = 1.5 α
C) α = β/3
D) α = 3 β
Correct option is (c)
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(8)
Heat added to a substance, at its melting pointing, is used to:
A) increase K.E. of particle.
B) decrease K.E. of particles
C) increase the attraction between particles
D) decrease the attraction between particles
Correct option is (d)
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(9)
336 J/g is latent heat of fusion of a material. How much heat is required to melt 10 g of material at its melting point?
$$A)\;336\;J\;\;\\B)\;3360\;J\;\;\\C)\;33600\;J\;\;\\D)\;3.36\;\times\;10^{5\;}J$$
Correct option is (b)
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(10)
Which of the following factors increases the rate of evaporation?
A) Decrease in temperature
B) Increase in humidity
C) Increase in wind speed
D) Decrease in surface area
Correct option is (c)
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(11)
What is value of a for a solid if its B is
$$9\;\times\;10^{-7}\;k^{-1}$$
?
$$A)\;3\;\times\;10^{-7}\;k^{-1}\;\\B)\;4.5\;\times\;10^{-7}\;k^{-1}\\C)\;9\;\times\;10^{-7}\;k^{-1}\\D)\;27\;\times\;10^{-7}\;k^{-1}$$
Correct option is (a)
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(12)
The process that involves the latent heat of vaporization is:
A) Melting of ice
B) Freezing of water
C) Evaporation
D) Condensation of steam
Correct option is (c)
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(13)
The sum and difference of the coefficient of real and apparent expansion of a liquid are in the ratio 2:1. The ratio of the coefficient of real expansion and apparent expansion must be:
A) 1 : 1
B) 2 : 1
C) 2 : 3
D) 3 : 1
Correct option is (d)
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(14)
Latent heat refers to the energy absorbed or released by a substance during a change of state, but with no change in temperature. What does “latent” mean in this context?
A) Constant
B) Visible
C) Hidden
D) Transparent
Correct option is (c)
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This is the end of 10th Class Physics Chapter 2 MCQs Solved
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