Question # 1

Water starts boiling at:

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80 °C

100 °C

90 °C

101 °C

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)

On Uranus the daytime temperature is ___________

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216 °C

-216 °C

-200 °C

-100 °C

Specific heat of water is how many times greater than that of dry soil?

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two times

three time

four times

five times

Latent heat of fusion is denoted by:

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H1

Hm

Hv

Hf

In ___________ (CFC) was found reacting with ozone.

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1920s

1970s

1950s

1960s

Steam is used to run machine because of high amount of ___________ heat.

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Latent

Great

Large

Nil

Water boils at:

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0°F

0°C

100°C

100 K

Specific heat for iron in joule per kilogram per kelvin is:

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387

920

470

903

The changing of a liquid into vapours from the surface of the liquid

without heating:

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Cooling

Vaporization

Evaporation

Sublimation

Water freezes at

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0oF

32oF

273 K

0 K

The upper reference point in thermometer is used to check:

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Melting point

Freezing point

Boiling point

Streaming point

In symbols, co-efficient of volume expansion is defined as

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β = ΔT/V∘ΔV

β = ΔV/ΔT

β = ΔV/V∘ΔT

β = ΔT/ΔV

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