There are three thermometers – one in contact with the skin of the man, other in between the vest and the shirt and third in between the shirt and coat. The readings of the thermometers are 30 
, 25 
and 22 
respectively. If the vest and shirt are of the same thickness, the ratio of their thermal conductivities is
Text Solution
Verified by ExpertsThe correct answer is:
D
Rate of flow of heat will be equal in both vest and shirt
∴ ∴ 
⇒ ⇒ 
⇒ ⇒ 
.
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