First slide
Convection
Question

Consider the following statements.
(A) It is hotter over the top of a fire than at the same distance on the sides.
(B) Air surrounding the fire conducts more heat upwards.

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. 
 

Easy
Solution

A  is true , but  B is false   because heat goes up due to convection but not due to conduction.

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