2. Sample Papers
  3. 9th Class
  4. Science

9th Class Science Sample Paper Science Olympiad Model Test Paper-17

  • question_answer
    An observer standing between two cliffs hears two successive echoes at 2 s and 3 s. Calculate the distance between cliffs (speed of sound in air =\[340\text{ }m/s\]).

    A) 340 m

    B) 850 m

    C) 510 m

    D) 790 m

    E) None of these

    Correct Answer: B

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