Question

What materials block radio waves most effectively?

Answer 1

Thin amounts of plastic wrap, wax paper, cotton and rubber are not likely to interfere with radio waves. However, aluminum foil, and other electrically conductive metals such as copper, can reflect and absorb the radio waves and consequently interferes with their transmission.

Answer 2

Thin amounts of plastic wrap, wax paper, cotton and rubber are not likely to interfere with radio waves. However,aluminum foil, and other electricallyconductive metals such as copper, can reflect and absorb the radio waves and consequently interferes with their transmission.