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

4th Class Science Sample Paper Science Olympiad Model Test Paper-1

  • question_answer
    Two surfaces are in contact with each other. How can we reduce the friction between them?

    A) By increasing the smoothness of the surfaces.

    B) By decreasing the smoothness of the surfaces.

    C) By increasing the roughness of the surfaces.

    D) All the above

    E) None of these

    Correct Answer: A

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