In micrometers, the piece of aluminium foil is 0.8μm thick.
Aluminium foil paper or aluminium foil is basically flattened aluminium mainly used in packaging of food, cosmetics, drugs and other chemicals, and for cooking. Aluminium metal is preferred in making foil because of its inert nature and its resistance to tear and puncture, when compared to other metals.
The thickness of a piece of aluminium foil is way too thin to be measured using common measuring tools like a measuring tape or a ruler. It is mostly measured in micrometers. To convert from centimeters to micrometers, we multiply the value by 10,000. This is because there are 10,000 micrometers in one centimeter, hence:
1 centimeter = 10000 micrometers
8.0 x 10⁻⁵cm = xμm
x = 8 x 10⁻⁵ x 10000
x = 8 x 10⁻⁵ x 10⁴
Applying the laws of indices;
x = 8 x 10⁻⁵⁺⁴ = 8 x 10⁻¹ or 0.8
Therefore, the piece of aluminium 8 x 10⁻⁵cm thick is 0.8μm thick in micrometers.
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