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

8th Class Science Sound Question Bank Sound Summative Objective Problems

  • question_answer
    Unit of frequency is

    A)  decibel (dB)      

    B)  Hertz (Hz)

    C)  meter                                 

    D)  second

    Correct Answer: B

    Solution :

      Not Available


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