सर्चलाइट का परावर्तक सतह होता है –sarchalait ka paraavartak satah hota hai – Ans- b. अवतल…
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Bihar Board 10th Math objective question, Class 10th math Objective question, 10th math quiz
Bihar Board 10th MATH objective question, Class 10th math Objective question, 10th math quiz, aa online…
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