By which of the following methods could a cup of hot tea lose heat when placed on metallic table in a class room a) conduction b) convection c) radiation d) evaporation of liquid.
a, b
b,c
a,b,c
a,b,c,d
A
a,b,c
B
b,c
C
a, b
D
a,b,c,d
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Solution
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Conduction occurs through the walls of the cup. Radiation occurs from the top surface. Convection occurs at the top of the cup. Evaporation of liquid also occurs.
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