question_answer

Name the suitable thermometers to measure the following temperatures: - \[\mathbf{80}{}^\circ \text{ }\mathbf{C},\]\[\text{ }\mathbf{60}{}^\circ \text{ }\mathbf{C},\] \[\text{ }\mathbf{250}{}^\circ \text{ }\mathbf{C},\text{ }\mathbf{780}{}^\circ \text{ }\mathbf{C},\text{ }\mathbf{2000}{}^\circ \text{ }\mathbf{C}\]

Answer:

                Gas thermometer for -\[\text{8}0{}^\circ \text{C}\]. Mercury thermometer for\[\text{6}0{}^\circ \text{C}\]. Platinum resistance thermometer for \[\text{25}0{}^\circ \text{C}\] and\[\text{78}0{}^\circ \text{C}\]. Total radiation pyrometer for\[\text{2}000{}^\circ \text{C}\].