When heat radiation falls on a surface then it :

The correct answer is option 1) i.e. gives energy and exerts pressure.

CONCEPT:

• Heat radiation: Heat radiation is the thermal radiation in the form of electromagnetic waves.
  • The energy is transmitted via electromagnetic waves, with or without a medium.
• Radiation pressure: It is the pressure exerted on an object by the momentum due to electromagnetic radiation.

EXPLANATION:

• Heat radiation is thermal energy carried in the form of electromagnetic waves.
• Since it is a form of electromagnetic radiation, they also exert radiation pressure on the surface on which it falls.

Hence, heat radiation gives energy and exerts pressure as well.