Question

Explain thermometer?

Answer 1

a thermometer is a device that measures temperature or a temperature gradient .A thermometer has two important elements :1] a temperature sensor [e.g the bulb of mercury-in-glass thermometer] in which some physical change occurs with temperature, and 2] some means of converting this physical change into a numeral value [e.g the visible scale that is marked on a mercury-in-glass thermometer].

Answer 2

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Thermometers :  

 There are three commonly used thermometers – Clinical , Laboratory and Digital  

1] Clinical Thermometers  

• The thermometers used to measure human body temperature is known as Clinical Thermometers  

• A clinical Thermometers is made up of a long and narrow glass tube .One end of this tube is sealed and the other end has a glass bulb filled with a mercury .

• The normal body temperature of a healthy person is 37 degree Celsius or 98 .6 degree F .

2] Laboratory Thermometer  

• Laboratory Thermometer are used in laboratories for performing experiments .

• Such thermometer can measure temperatures of hot objects such as boiling water or cold objects such as ice.

• The range of laboratory thermometer 0 degree C to 110 degree C .

3] Digital Thermometer  

• Mercury is toxic in nature and other thermometer have mercury so digital thermometer now days widely used.

• A digital thermometer does not contain mercury and it has a plastic body is easy to use , and provides accurate reading in the form of a digital display .