An old audio cassette stores sound on what?
AMagnetic tape coating
BA pressed laser disc
CA printed barcode strip
DA glass memory plate
Answer & Solution
Correct answer: A. Magnetic tape coating
1. Common audio cassettes use magnetic tape.
2. The sound is encoded on its magnetic coating.
3. Laser grooves and barcodes are not used.
_Source: Wikipedia, Magnet, Common uses_
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