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Recording on CD is done using laser beams in optical recording of sound.

Recording on CD is done using laser beams in optical recording of sound. Correct Answer True

A molded plastic disc containing digital data on it is scanned by a laser beam. Recording on CD is done by using laser beams. This laser beam falls on a rotating disc and thus it causes bits of varying width and fixed depth. Thus it records in a binary form. Flats and pits make respectively 1s and 0s in binary.

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By converting which signals into variations of light intensity falling onto the film is recording on photographic film donein optical recording of sound?
What is a small, portable and round medium made of molded polymer for electronically recording, storing, and playing back audio, video, text and other information in digital form in optical recording of sound?
Laser photolithography was developed from photolithography by replacing the photomask with laser beams.