(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.