Dknow that it is possible to make an invisible cloak of the same kind.
2.What is true of microwaves?
ATheir wavelengths are shorter than those of visible light.
BTheir wavelengths are longer than those of visible light.
CThey are different from visible light as they are a kind of radiant energy.
DThey are visible to the human eye.
3.What is NOT true of the invisibility device?
AIt is made of a special material with unusual ability.
BMicrowaves bounce off it when they strike it.
CMicrowaves pass through it when they strike it.
DIt bends the microwaves all the way around until they reach the opposite side.
4.What does the word coaster mean in the passage?
AA disk or plate placed under a drinking glass to protect a table top.
BA vessel engaged in coastal trade.
CA roller coaster.
DA resident of a coastal area.
5.Harry Potters invisibility cloak doesnt have any real competition yet,because
Ascientists have not found out how his cloak works.
Bthe cloaking device is a total failure.
Cthe cloaking device works only for microwaves.
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