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  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Olympiad Model Test Paper-11

  • question_answer
    What is rectilinear propagation?

    A) Light travels in zigzag line.

    B) Light travels in straight line.

    C) Light travels in curve line.

    D) All of these

    E) None of these

    Correct Answer: B

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