Specifications

Ver SG 9/200 5 Sharp Electronics Corporation
Microwave energy looses power as it travels through space.
Power is lost at a rate that is inversely proportional to
the distance traveled.
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Microwave Properties
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So far we have mentioned two characteristics or properties of microwave energy:
absorption and transmission. Like light waves, microwave energy is also reflected.
Metals reflect microwaves and since there is no absorption, metals do no heat. Many
materials in addition to glass transmit microwaves and again since there is no absorption
there is no heating. Paper, china and some plastics transmit microwaves and are therefore
likely candidate materials for utensils for use in microwave ovens. The overall result is
that we are able to cook or heat foods in an oven on utensils, which are relatively cool to
the touch. No more burnt fingers.
Reflection
Microwave energy is reflected
from metals. Metals do not
heat.
Transmission
Many materials transmit
microwave and do not
heat