Working of a Mercury Thermometer

Q. Identify the type of thermometer shown below.

1. Kitchen thermometer
2. Digital thermometer
3. Laboratory thermometer
4. Clinical thermometer

Q.

Which of the following can be used to measure the temperature of boiling water?

1. Clinical thermometer

2. Laboratory thermometer

3. Both laboratory and clinical thermometer

4. Barometer

Q. Why should we read the thermometer by keeping​ the level of mercury along the line of sight?​

1. To avoid fall of mercury level back to bulb rapidly​
2. To avoid reading wrong value ​
3. To avoid any damage to the eyes​
4. To avoid any leakage of mercury from the thermometer​