Which of the following pairs is wrong
Options
(a) Pressure-Barometer
(b) Relative density-Pyrometer
(c) Temperature-Thermometer
(d) Earth-Seismograph
Correct Answer:
Relative density-Pyrometer
Explanation:
Barometer – Used to measure a atmospheric pressure
Pyrometer – Used to measure temperature of a surface
Thermometer – Used to measure a temperature gradient
Seismograph – Used to measure a earthquake Hydrometer – Used to measure a relative density