Question

Human body temperature is well measured by
(A) a clinical thermometer
(B) a laboratory thermometer
(C) thermostat
(D) both A and B can be used

Answer 1

Hint A thermometer is a gadget utilized for estimating temperature. This thermometer shows that the temperature is around $0$ degrees Celsius, or $32$ degrees Fahrenheit. The word thermometer comes from the Latin thermo-, signifying 'heat,' and - metrum, signifying 'measure.' So, a thermometer is a logical apparatus for estimating temperature. Thermometers work by using the actual properties of different substances.

Complete step by step solution
A clinical thermometer is a thermometer which is used for measuring the temperature of the human body, the thermometer has a constriction in the tube above the bulb which prevents the movement of the column of the liquid downwards once it reaches the maximum temperature, so that it continuous to indicate the maximum temperature until the liquid is returns back down to the bulb.

There are different types of the thermometers which are used for different applications. For example, there are one set of the thermometers are used to measure the temperature of the human body and the another set of the thermometer are used to determine the temperature in the laboratory and another set of the thermometers are used to determine the boiling point and the freezing point during experiments.
Thus, the clinical thermometers are used to determine the temperature of the human body.

Hence, the option (A) is the correct answer.

Note There are a greater number of thermometers available for different applications. But if the one type of thermometer is designed for one application which cannot be used for the other applications. For example, the laboratory thermometer is not used to find the temperature of the human body.