Question # 1

Water freezes at:

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0° F

32°F

-273 K

0 K

Bimetallic strip works on the principle of

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expansion of metals

contraction of metals

both (A) and (B)

unequal expansion of metals

On Celsius scale, temperature 300 K will be:

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26°C

25°C

24°C

27°C

Normal human body temperature is:

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15 ^oC

37^oC

37^oF

98,6 ^oC

Thermostat is a controlling switch:

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Heat

Temperature

Sound

Light

If a liquid of mass 'm' requires thermal energy 'ΔQv' to completely change into gas at its boiling point without any change in its temperature, then its latent heat of vapourization can be calculated as following:

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Hv = m/ΔQv

Hv = mΔQv

Hv = cmΔQv

Hv =ΔQv/m

Crocus flower open when the temperature is:

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23 ^oC

26^oC

29^oC

32^oC

On Uranus the daytime temperature is ___________

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216 °C

-216 °C

-200 °C

-100 °C

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 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

On heating the strip, ___________ expands more than_______

respectively.

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Brass, Iron

Iron, Brass

Copper, brass

Brass, copper

Density of water is:

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100 kgm^-3

1000 kgm^-3

10 kgm^-3

1 kgm^-3

Process by which liquids changes into vapors is ............... .

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Vaporization

Evaporation

Boiling

None of above

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