2. Questions Bank
  3. 8th Class
  4. Science
  5. Sound

8th Class Science Sound Question Bank Sound

  • question_answer
    Why are sounds of different frequencies produced when the length of the scale protruding out of table is changed and then vibrated?

    A)  Due to change in length

    B)                         Due to change in velocity

    C)                         Due to change in amplitude

    D)                         All of the above

    Correct Answer: A

    Solution :

    The longer the vibrating material, the slower is the oscillation of scale and hence, low sound is produced. Shortening the length of the scale causes it to move up and down quickly producing a higher pitched (frequency) sound.


You need to login to perform this action.
You will be redirected in 3 sec spinner