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

Answer:

i) A vibrating tuning fork will produce an analog signal

ii) musical sound due to a vibrating sitar string will produce analogue signal

iii) Light pulse will produce digital signals

iv) Output of NAND gate will produce digital signals.