Question

Note on reading a 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 a mercury-in-glass thermometer or the digital sensor in an infrared thermometer) in which some change occurs with a change in temperature, and (2) 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 industry to monitor processes, in meteorology, in medicine, and in scientific research.

Some of the principles of the thermometer were known to Greek philosophers of two thousand years ago. The modern thermometer gradually evolved from the thermoscope with the addition of a scale in the early 17th century and standardisation through the 17th and 18th centuries.[2][3][4]

Temperature

Registering

Physical principles of thermometry

Primary and secondary thermometers

Calibration

Precision, accuracy, and reproducibility

Indirect methods of temperature measurement

Applications

See also

References

Further reading

Answer 2

Answer:

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Reading a thermometer.....

For measurement purpose, the temperarture scale is calibrated to assign a

numerical value to a given temperature. Depending on the purpose, and

use, of a thermometer, two fixed reference points (lowest temperature and

highest temperature) are choosen. The difference, in the temperature of the

two fixed reference points, is called the range of the thermometer. The

interval, between these fixed points, is divided into an equal (fixed) number

of divisions.Two scales, that have been in common use, are the Fahrenheit and the

Celsius scales. Most of the countries now use the Celsius scale to measure the temperature of an object .

Diagram of the clinical thermometer is given in the figure.....

Explanation:

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