Which of the following is used for measurement of temperature?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer:
Option 2: Thermometer
Explanation:
A thermometer is used to measure temperature. It contains liquids like mercury or alcohol that expand or contract with temperature changes. It is widely used in medical, environmental, and scientific fields.
Additional Facts:
Option 1: Barometer measures pressure.
Option 3: Hygrometer measures humidity.
Option 4: Hydrometer measures density.
Probable Exam Questions:
Q: Principle of thermometer?
A: Expansion
Q: Hygrometer measures?
A: Humidity
Q: Barometer measures?
A: Pressure
Q: Hydrometer measures?
A: Density