Question : Which device is used for measuring temperature?
Option 1: Manometer
Option 2: Ammeter
Option 3: Thermometer
Option 4: Barometer
Correct Answer: Thermometer
Solution : The correct option is the Thermometer.
A common and conventional instrument for measuring temperature is a thermometer. It consists of a glass tube with a calibrated scale enclosing a temperature-sensitive liquid (such as alcohol or mercury). The liquid expands or contracts in response to temperature changes, and the scale indicates the associated temperature.
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