Question

Pick out the one which is a first order instrument.

a.

Mercury in glass thermometer (without any covering or air gap).

b.

Bare metallic thermometer.

c.

Bare vapor pressure thermometer.

d.

All (a), (b) and (c).

Answer: (d).All (a), (b) and (c).

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Q. Pick out the one which is a first order instrument.

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