Question

Which of the following statements about radiation is true?

Radiation is the only form of heat transfer that is unable to travel through the vacuum of space.







Radiation is the only form of heat transfer that is experienced on Earth.







Radiation is the only form of heat transfer that can travel through the vacuum of space.







Radiation is the only form of heat transfer that is not experienced on Earth.

Answer 1

@chrisk123

Answer 2

@Abhisar

Answer 3

Radiation is the mode of heat transfer which takes place via electromagnetic waves like light. It does not require any medium for its propagation. Example is transfer of heat from sun to earth via sunlight.

Answer 4

Other mode of heat transfer like convection and conduction need material medium for their propagation and can not travel through empty space i.e. vacuum.

Answer 5

So the correct option should be?