Choose the correct statement.
- AWhile watching television by means of an antenna,a passing nearby aeroplane can produce wavering ghost images in the television picture.
- BSolar cells are often coated with a transparent thin film,such as silicon monoxide $(SiO)$,to minimize reflective losses.
- CGlass lenses used in cameras and other optical instruments are usually coated with a transparent thin film,such as magnesium fluoride $(MgF_2)$,to reduce or eliminate unwanted reflection.
- DAll of these.
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