Question

mention any two thermometer and write the method of use of any one

Answer 1

two types of thermometer are
digital thermometer. analog thermometer

digital thermometer is use to measure the temperature of body
it shows the temperature digitally suchas in numerical digits
by this wecan easily obtain the temperature of body and it is also easy to read than analog thermometer

Answer 2

A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object). A thermometer has two important elements: a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury-in-glass thermometer or the digital readout on an infrared model). Thermometers are widely used in technology and industry to monitor processes, in meteorology, in medicine, and in scientific research.