A mercury thermometer with bulb idealized as a sphere of 1 mm radius is used for measuring the temperature of fluid whose temperature is varying at a fast rate. For mercury If the time for the temperature change of the fluid is 3 second, what should be the radius of thermocouple to read the temperature of the fluid?For the thermocouple materialk = 100 W/m Kα = 0.0012 m2/sh = 18 W/m2 K

A mercury thermometer with bulb idealized as a sphere of 1 mm radius

1.	A mercury thermometer with bulb idealized as a sphere of 1 mm radius is used for measuring the temperature of fluid whose temperature is varying at a fast rate. For mercury If the time for the temperature change of the fluid is 3 second, what should be the radius of thermocouple to read the temperature of the fluid?For the thermocouple materialk = 100 W/m Kα = 0.0012 m2/sh = 18 W/m2 K
A.	.864 mm
B.	.764 mm
C.	.664 mm
D.	.564 mmView Answer
Answer» B. .764 mm

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A mercury thermometer with bulb idealized as a sphere of 1 mm radius is used for measuring the temperature of fluid whose temperature is varying at a fast rate. For mercury If the time for the temperature change of the fluid is 3 second, what should be the radius of thermocouple to read the temperature of the fluid?For the thermocouple materialk = 100 W/m Kα = 0.0012 m2/sh = 18 W/m2 K
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