The thermometer should not touch the ............ of the beaker.

In an experiment to determine the boiling point of water state the reason for the following recautions: (i) The bulb of the thermometer should not touch the sides of the beaker. (ii) while boiling water pumice stone should be added.

An ideal thermometer should have

A thermometer is used to measure

What is a thermometer?

A beaker containing water is placed on the platform of a spring balance. The balance reads 1.5 kg. A stone of mass 0.5 kg and density 10^(4) kg//m^(3) is immersed in water without touching the walls of the beaker. What will be the balance reading now?

There is more water in a beaker placed in the pan of a spring balance.If we dip our finger in this water without touching the bottom of the beaker, then what would be the effect on the reading of the balance ?

Why a clinical thermometer should not be sterilized by boiling water?

A vertical glass jar is filled with water at 10^(@)C . It has one thermometer at the top and another at the bottom. The central region of the jar is grdually cooled. It is found that the bottom thermometer reads 4^(@)C earlier than the top thermometer. And the top thermometer reads 0^(@)C . earlier than the bottom thermometer. This happens because

The first thermometer was developed by