Q.

Different thermometers of the same type give different measurements of the same body. The variations are smallest in the case of :

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a

liquid – thermometer

b

gas thermometer

c

resistance thermometer

d

thermo - couple thermometer

answer is B.

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Detailed Solution

(b)Because gas thermometers measures standard thermometers. 

a, c, d : During measurement of temperature, heat is absorbed by thermometric substance in thermometers

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