Question

The heat energy from the sun comes to us by the process of:

• A. radiation
• B. conduction
• C. convection
• D. none of the above

Answer 1

The correct option is A

radiation

An explanation for the right answer:

1. The transference of heat energy from a hot body to a cold body directly, without heating the space in between two bodies, is called radiation.

An explanation for the wrong option:

1. The phenomenon in which particles of a medium actually move to the source of heat energy, and on absorbing heat energy moves away from it thereby making space for other particles to move to the source of heat energy, is called convection.
2. The process of transmission of heat energy in solids without the actual movement of particles from their positions is called conduction.

Hence, the correct answer is an option:(A): Radiation.