Class 11Physics10-1.Thermometry, Thermal Expansion and CalorimetryTemperature and Temperature scales
MediumIs negative temperature possible on the Kelvin scale? Why?
(N/A) No,negative temperature is not possible on the Kelvin scale. The Kelvin scale is an absolute temperature scale where the lowest possible temperature is absolute zero $(0 \ K)$. According to the third law of thermodynamics,it is impossible to reach absolute zero,and temperatures below this point cannot exist because the kinetic energy of particles cannot be less than zero.
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The temperature at which the reading on the Fahrenheit scale becomes $90 \%$ more than the reading on the Celsius scale is: (in $^{\circ} F$)
Assertion $(A)$: Rapidly changing temperatures can be measured by thermocouples.
Reason $(R)$: The thermal capacity of the junction of a thermocouple is very small.
Reason $(R)$: The thermal capacity of the junction of a thermocouple is very small.
Oxygen boils at $-183^{\circ}C$. This temperature is approximately ....... $^{\circ}F$.
Easy
View SolutionThe resistance of the platinum wire of a platinum resistance thermometer at an ice point is $5 \Omega$ and at steam point is $5.23 \Omega$. When the thermometer is inserted in a hot bath,the resistance of a platinum wire is $5.795 \Omega$. Calculate the temperature of the bath. (in $^{\circ} C$)
$A$ thermocouple is a device for the measurement of
Medium
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