Describe the construction of a laboratory thermometer.
Laboratory thermometer consists of a bulb with a long capillary tube.The wall of the bulb is made thinner and the capillary tube is made narrower in order to make the thermometer more sensitive.
Mercury thermometer can be used to measure both hot and cold substances.Usually,laboratory thermometer is made in Celsius scale ranging from −10°Cto110°C.It is used to measure temperature with high accuracy.It is constructed on the basis of mercury based thermometers.