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DVD uses a laser beam for recording and video head for playback.

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in Analog Communications by (122k points)
DVD uses a laser beam for recording and video head for playback.

(a) True

(b) False

This question was addressed to me in examination.

This intriguing question comes from Frequency Discrimination Method topic in division SSB Modulation of Analog Communications

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Best answer
Right choice is (b) False

To explain I would say: Digital Versatile Disc (DVD) uses a laser beam for both recording and playback.

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