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Questions  

Consider the following statements.
(A) When temperature difference across the two sides of a wall is increased, its thermal conductivity increases.
(B) Thermal conductivity depends upon the temperature difference across the two sides of a wall.

Select the correct option.
(a) (A) is false but (B) is true.
(b) Both (A) and (B) are true.
(c) (A) is true but (B) is false.
(d) Both (A) and (B) are false.
 

a
Both (A) and (B) are true.
b
(A) is true but (B) is false.
c
(A) is false but (B) is true.
d
Both (A) and (B) are false.

detailed solution

Correct option is D

Thermal conductivity is the property of a substance which depends up on the nature of the substance.

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