Write an easy on liquid i glass thermometer
Answers
Answer:
The liquid in glass thermometer, is the most commonly used device to measure temperature and it is inexpensive to make and easy to use.The liquid in glass thermometer has a glass bulb attached to a sealed glass tube (also called the stem or capillary tube).A very thin opening, called a bore, exists from the bulb and extends down the centre of the tube.The bulb is typically filled with either mercury or red-coloured alcohol and is free to expand and rise up into the tube when the temperature increases, and to contract and move down the tube when the temperature decreases.In the Liquid In Glass Thermometers (LIG) the thermally sensitive element is a liquid contained in a graduated glass envelope.The principle used to measure temperature is that of the apparent thermal expansion of the liquid.