NDA GK Previous Papers Chapterwise MCQs - Optics — Flashcards | Defence Exams in India | FatSkills

NDA GK Previous Papers Chapterwise MCQs - Optics — Flashcards

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Two plane mirrors are inclined at an angle q to one another. A ray of light incident on the first mirror and parallel to the second mirror is reflected from the second mirror parallel to the first mirror. What is the value of q ?
60°
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