Consider the following statements about the microphone and the speaker of a mobile phone: 1. The microphone converts sound to a mechanical signal. 2. The microp

Question

Consider the following statements about the microphone and the speaker of a mobile phone:
1. The microphone converts sound to a mechanical signal.
2. The microphone converts sound to an electrical signal.
3. The speaker converts a mechanical signal to sound.
4. The speaker converts an electrical signal to sound.
Which of the statements given above are correct?

Accepted Answer

(D) 2 and 4

Answer

(A) 1 and 3

Answer

(B) 1 and 4

Answer

(C) 2 and 3