Question # 1

Which gas is used inspite of Freon gas in refrigerator?

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CO₂

H₂

NH₃

N₂

Coefficient of linear thermal expansion of Steel?

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1.2 x 10^-5

2.2 x 10^-5

0.2 x 10^-5

1.3 x 10^-5

The temperature of sun surface is:

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5000°C

4000°C

6000°C

7000°C

What flower is known as natural thermometer?

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Rose

Barasicca

Crocus

Tulip

The specific heat of water is

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2100 Jkg-1 k-1

4200 Jkg-1 k-1

2500 Jkg-1 k-1

2010 Jkg-1 k-1

____________ deals with temperature .

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Bio physics

Geophysics

Thermo physics

Plasma physics

Gallium (element) melts at:

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40 °C

30 °C

80 °C

90 °C

There are types of thermometer:

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1

2

3

4

Length of a rod is L∘ on temperature T∘. After heating upto temperature T, its length L becomes

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L = L∘ (1 + αΔT)

L = L∘ (1 + ΔT)

L = L∘ (1 - αΔT)

L = L∘ (1 -ΔT)

Ice at ............ °C is more effective in cooling.

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0

-1

-2

-3

On Uranus the daytime temperature is ___________

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216 °C

-216 °C

-200 °C

-100 °C

S.I unit of specific heat is:

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Jkg^-1 K^-1

J^-1kg^-1K^-1

JkgK

Jkg^-1K

When ice is cooled below 0 ^oC it:

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Expand

Contracts

Boils

None of these

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9th Class Physics Chapter 8 Thermal Properties of Matter English Medium KPK Boards Online Mcqs MCQs With Answers

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