Heat TransferHard
Question
If the rates of loss of energy by unit area of an iron ball are E1 E2 and E3 when it cools from 75oC to 70oC, 70oC to 65oC and 65oC to 60oC respectively then : -
Options
A.E1 = E2 = E3
B.E1 > E2 > E3
C.E1 < E2 < E3
D.E1 < E3 < E2
More Heat Transfer Questions
Infra red radiation is detected by...A body emits light of blue colour on heating. Which light can it emit on further heating ?...A liquid in a beaker has temperature θ(t) at timet and θ0 is temperature of surroundings, thenaccording to New...Three very large plates of same area are kept parallel and close to each other. They are considered as idealblack surfac...Two bars of thermal conductivities K and 3K and lengths 1 cm and 2 cm respectively have equal cross-sectional area. they...