Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science Placement Tests: Certification Test 707

Total Internal Reflection Study App & e-Book: MCQ 707

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MCQ: 707

The angle of incidence when it meets the next boundary while leaving the object, is

  1. greater than zero
  2. equal to zero
  3. less than zero
  4. perpendicular to the surface of object

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