Question

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. a, b
• B. b,c
• C. a,b,c
• D. a,b,c,d

Answer 1

The correct option is D a,b,c,d

By conduction to tea cup.
By convection to cooler portions of tea.
By evaporation to air.
By radiation to everything.