Heat from a light source reaching your hand without touching it is which transfer?

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Multiple Choice

Heat from a light source reaching your hand without touching it is which transfer?

Explanation:
Heat moving from a light source to your hand without touching is radiation. Radiation transfers energy through electromagnetic waves, which can travel through air or space. The light source emits infrared waves that reach your hand and are absorbed by your skin, warming it. This differs from conduction, which needs direct contact to pass heat between substances, and from convection, which relies on moving fluids to carry heat. Absorption is about taking in energy, but the method of transfer here is radiation—the energy travels as waves and is then absorbed by the hand.

Heat moving from a light source to your hand without touching is radiation. Radiation transfers energy through electromagnetic waves, which can travel through air or space. The light source emits infrared waves that reach your hand and are absorbed by your skin, warming it. This differs from conduction, which needs direct contact to pass heat between substances, and from convection, which relies on moving fluids to carry heat. Absorption is about taking in energy, but the method of transfer here is radiation—the energy travels as waves and is then absorbed by the hand.

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