Question

Define radiation. Give any two examples where heat is transferred by radiation.

Answer 1

Answer:

Radiation occurs through a vacuum or any transparent medium (either solid or fluid). Thermal radiation is the direct result of random movements of atoms and molecules in matter.

Example

A burning candle emits radiation in the form of heat and light.

The Sun emits radiation in the form of light, heat, and particles.

Uranium-238 decaying into Thorium-234 emits radiation in the form of alpha particles.

Answer 2

Answer:

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