Multiple choice

Which of the following statements is/are false? a. Sound is produced when an object moves to and fro rapidly. b. The energy required to make an object vibrate and produce sound is produced by some outside source. c. Sound of a radio speaker is produced due to the vibrating air columns of the speaker.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as this statement is false. Sound of a radio speaker is not produced due to the vibrating air columns of the speaker. It is due to the vibrations of the cone of speaker.

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