Question # 1

What will be the value of β for a solid for which α has a value of 2 x 10^-5 C^-1

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2 x 10^-5 K^-1

6 x 10^-5 K^-1

8 x 10^-15 K^-1

8 x 10^-5K^-1

Which expands on heating?

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Water

Steel

Copper

All are true

The upper reference point in thermometer is used to check:

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Melting point

Freezing point

Boiling point

Streaming point

The energy store in an atom or molecule due to intermolecular force is:

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Kinetic energy

Potential energy

Internal energy

G.P.E

Which of the following is produced in refrigerators by evaporation of a liquefied gas?

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Heating

Cooling

Freezing

Melting

Water freezes at .

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0^o F

32 ^oF

-273 K

0 K

The value of latent heat of fusion ice is:

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3.36 x 10^-5 Jkg^-1

3.36 x 10⁵Jkg^-1

3.36 x 10⁶Jkg^-1

None of these

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

Specific heat of water is J kg^-1 K^-1IS:

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4200

4000

1000

2500

A large water reservoir keeps the temperature of nearby land moderate due to

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Low temperature of water

Low specific heat of water

Less absorption of heat

Large specific heat of water

The Celsius lower reference point is 0^oC while upper reference point is:

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212 ^oC

180^oC

100^oC

110^oC

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Physics 9th Class English Medium Unit 8 Online Test MCQs With Answers

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