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      Question

      Eclipses occur due to which optical

      phenomena?
      A Reflection Correct Answer Incorrect Answer
      B Refraction Correct Answer Incorrect Answer
      C Rectilinear propagation Correct Answer Incorrect Answer
      D Diffraction Correct Answer Incorrect Answer

      Solution

      An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer. Rectilinear propagation is a wave property which states that waves propagate (move or spread out) in straight lines.

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