Celsius and Fahrenheit scales are related as :

1. $\dfrac{\text{C}}{5}$ = $\dfrac{\text{F - 32}}{9}$

2. $\dfrac{\text{C}}{9}$ = $\dfrac{\text{F + 32}}{5}$

3. 5C = $\dfrac{9}{\text{F + 32}}$

4. $\dfrac{\text{C}}{5}$ = $9(\text{F + 32})$

The increase in the length of a solid on heating is called :

1. contraction
2. linear expansion
3. cubical expansion
4. superficial expansion

Water is cooled from 4°C to 0°C. It :

1. contracts
2. expands
3. first contracts, then expands
4. first expands, then contracts.

The change in volume of water when it is cooled from ……………°C to ……………°C is known as anomalous expansion of water :

1. 0,4
2. 4,0
3. 1,0
4. 0,1