Question # 1

Water freezes at .

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0^o F

32 ^oF

-273 K

0 K

The device that is used to measure the temperature of a body called

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Thermometer

Acidimeter

Barometer

Clock timer

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

In ___________ (CFC) was found reacting with ozone.

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1920s

1970s

1950s

1960s

Heat travels from __________

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Colder to hotter

Hotter to colder

Both a & b are possible

None of above

Degree of hotness or coldness measures the body:

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Heat

Temperature

Energy

Thermal

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)

What flower is known as natural thermometer?

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Rose

Barasicca

Crocus

Tulip

Expansion in one meter steel is:

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1.0 mm

0.1 mm

1.0 mm

1.3 mm

The value of latent heat of vaporization of water is:

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2.26 x 10⁶ Jkg^-1

2.29 x 10⁵Jkg^-1

2.26 x 10^-6Jkg^-1

3.29 x 10^-5Jkg^-1

Absolute zero is equal to:

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0°C

-273°C

0°F

All

There are types of thermometer:

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1

2

3

4

Mercury is used as thermometric material because it has

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Uniform thermal expansion

Low freezing point

Small heat capacity

All the above properties

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