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Which of the following would produce analogue

Question:

Which of the following would produce analogue signals and which would produce digital signals?

(i) A vibrating tuning fork

(ii) Musical sound due to a vibrating sitar string

(iii) Light pulse

(iv) Output of NAND gate

Solution:

(i) A vibrating tuning fork and ii) musical sound due to a vibrating sitar string will produce analogue

(iii) Light pulse and iv) Output of NAND gate will produce digital signals.

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