# Interaction of light with matter

Visible light has higher frequency than microwaves and hence higher energy. Then why doesn't it heat up objects like microwave does?

• – Andrei Geanta Jan 22 '18 at 11:29
• – flippiefanus Jan 22 '18 at 11:36

• Indeed, though it's a common misconception that the frequency of the microwaves (about 2.4 GHz) is chosen to be $equal\ to$ the natural frequency of libration of the water molecules. [If that were the case the absorption would be so strong that a microwave oven would act like a toaster, with the food absorbing almost all the energy in a thin surface layer.] – Philip Wood Jan 22 '18 at 15:31