Question on: JAMB Physics - 2009
The thermometer whose reading is indicated by a change in colour of its thermometric property is the?
A
bi-metalic strip thermometer
B
thermocouple
C
platinium resistance thermometer
D
optical pyrometer
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Correct Option: D
A pyrometer is instrument for measuring high temperature.
The optical pyrometer is one in which the luminous radiation from the hot body is compared with that from a known source.
The optical pyrometer is one in which the luminous radiation from the hot body is compared with that from a known source.
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