2. Questions Bank
  3. 9th Class
  4. Science
  5. Sound

9th Class Science Sound Question Bank Sound Conceptive Objective Problems

  • question_answer
    Which wave does not required material medium for their propagation?

    A)  electromagnetic waves

    B)  mechanical waves

    C)  both (a) and (b)              

    D)  none of these

    Correct Answer: A

    Solution :

      Not Available


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